{"id":7391,"date":"2024-11-12T11:09:32","date_gmt":"2024-11-12T00:09:32","guid":{"rendered":"https:\/\/www.optalert.com\/?p=7391"},"modified":"2026-04-29T16:07:39","modified_gmt":"2026-04-29T06:07:39","slug":"efeito-retardado-comprometimento-por-alcool-apos-queda-do-bac","status":"publish","type":"post","link":"https:\/\/www.optalert.com\/pt\/alcohol-impairment-bac-differences\/","title":{"rendered":"O efeito de defasagem: O comprometimento pelo \u00e1lcool persiste horas depois que a BAC diminui"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"7391\" class=\"elementor elementor-7391\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-dce-background-color=\"#FFFFFF\" data-dce-background-overlay-color=\"#FFFFFF\" class=\"elementor-section elementor-top-section elementor-element elementor-element-5c6b3f2d big elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c6b3f2d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;gradient&quot;,&quot;_ob_glider_is_slider&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d8a24e9\" data-id=\"d8a24e9\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-55b90463 ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"55b90463\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the first of our three-part series about driver intoxication, we reveal how impairment persists for hours after blood alcohol concentration falls.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3413cc ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"d3413cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"2106\" height=\"850\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1.png\" class=\"attachment-full size-full wp-image-7414\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1.png 2106w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-300x121.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-1024x413.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-768x310.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-1536x620.png 1536w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-2048x827.png 2048w\" sizes=\"(max-width: 2106px) 100vw, 2106px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">BAC peaked 1.5 hours after drinking alcohol, while impairment peaked at the five-hour mark.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-dce-background-image-url=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2023\/05\/bg-dots.svg\" class=\"elementor-section elementor-top-section elementor-element elementor-element-4a860184 dots big elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a860184\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;,&quot;background_motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;background_motion_fx_translateY_effect&quot;:&quot;yes&quot;,&quot;_ob_glider_is_slider&quot;:&quot;no&quot;,&quot;background_motion_fx_translateY_speed&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;background_motion_fx_translateY_affectedRange&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:{&quot;start&quot;:0,&quot;end&quot;:100}},&quot;background_motion_fx_devices&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5f056fbd\" data-id=\"5f056fbd\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-21588d31 ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"21588d31\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tUnderstanding the relationship between blood alcohol concentration (BAC) and impairment is critical to improving road safety and moving us closer to <a href=\"https:\/\/visionzeronetwork.org\/about\/what-is-vision-zero\/\">Vision Zero<\/a>. Optalert recently completed a study that sheds light on the nature of impairment due to alcohol.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20387af6 highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"20387af6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A comprehensive study on impairment due to alcohol<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de84438 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"de84438\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Optalert engaged <a href=\"https:\/\/keatechinc.com\/\">KEA Technologies<\/a> in Boston to conduct a comprehensive study on how impairment develops after consumption of alcohol. It involved 30 diverse participants with no sleep disorders or other potential confounding factors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c8b867 ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"2c8b867\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1449\" height=\"515\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Intoxication-blog-1-Diverse-participants-chart-2.png\" class=\"attachment-full size-full wp-image-7402\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Intoxication-blog-1-Diverse-participants-chart-2.png 1449w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Intoxication-blog-1-Diverse-participants-chart-2-300x107.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Intoxication-blog-1-Diverse-participants-chart-2-1024x364.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Intoxication-blog-1-Diverse-participants-chart-2-768x273.png 768w\" sizes=\"(max-width: 1449px) 100vw, 1449px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Participants were diverse across all characteristics and screened to ensure they had no background impairment from sleep disorders or drug use.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-843bb8f fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"843bb8f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Each participant began at 10:00 a.m. with a BAC of 0.00%. Their baseline impairment was measured and then they consumed alcohol. This study did something very different to prior research: BAC and impairment were measured repeatedly over the entire day as the participant processed the alcohol. The test ended when they returned a BAC reading of 0.00% or eight hours had elapsed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8afc2d4 ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"8afc2d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2252\" height=\"587\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1.png\" class=\"attachment-full size-full wp-image-7401\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1.png 2252w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1-300x78.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1-1024x267.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1-768x200.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1-1536x400.png 1536w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Study-protocol-1-2048x534.png 2048w\" sizes=\"(max-width: 2252px) 100vw, 2252px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-042718d highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"042718d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Measuring objective impairment<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e0ca1c8 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e0ca1c8\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;_ob_glider_is_slider&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-inner-column elementor-element elementor-element-6b51a24\" data-id=\"6b51a24\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9334cf3 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"9334cf3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Impairment was measured with the <a href=\"https:\/\/www.optalert.com\/driver-drowsiness-ground-truths-compared-jds-kss-and-eeg\/\">Johns Test of Vigilance (JTV)<\/a>, created by Optalert founder and sleep science pioneer, Dr. Murray Johns.<\/p><p>The JTV is a 15-minute test that was refined over years to measure the precise form of psychomotor impairment that indicates a person is unfit to drive. The test participant sees three circles. Every 5 to 15 seconds, the circles momentarily change to diamonds and squares for 400 milliseconds. The participant must click a button each time the shapes change. Non-response within 2 seconds is recorded as an error of omission (EOO).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-abd4c79\" data-id=\"abd4c79\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;,&quot;motion_fx_devices&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b254869 ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"b254869\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1462\" height=\"915\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV.png\" class=\"attachment-full size-full wp-image-7406\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV.png 1462w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV-300x188.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV-1024x641.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV-768x481.png 768w\" sizes=\"(max-width: 1462px) 100vw, 1462px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d225798 elementor-absolute elementor-hidden-tablet elementor-hidden-mobile ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"d225798\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;,&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1462\" height=\"915\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV2.png\" class=\"attachment-full size-full wp-image-7407\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV2.png 1462w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV2-300x188.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV2-1024x641.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/JTV2-768x481.png 768w\" sizes=\"(max-width: 1462px) 100vw, 1462px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-dce-background-color=\"#FFFFFF\" data-dce-background-overlay-color=\"#FFFFFF\" class=\"elementor-section elementor-top-section elementor-element elementor-element-3d288bb big elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3d288bb\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;gradient&quot;,&quot;_ob_glider_is_slider&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b992e05\" data-id=\"b992e05\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5732223 ob-has-background-overlay elementor-widget elementor-widget-jet-table\" data-id=\"5732223\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"jet-table.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-jet-table jet-elements\">\n\t\t<div class=\"jet-table-wrapper\">\n\t\t\t<table class=\"jet-table jet-table--fa5-compat\">\n\t\t\t\t<thead class=\"jet-table__head\"><tr class=\"jet-table__head-row\"><th class=\"jet-table__cell elementor-repeater-item-07c7dab jet-table__head-cell\" colspan=\"1\" scope=\"col\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\">At a glance: BAC versus Impairment<\/div><\/div><\/div><\/th><\/tr><\/thead>\n\t\t\t\t\t\t\t\t<tbody class=\"jet-table__body\"><tr class=\"jet-table__body-row elementor-repeater-item-610e6fe\"><td class=\"jet-table__cell elementor-repeater-item-b391e1c jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\"><strong>Blood Alcohol Concentration (BAC)<\/strong> is the amount of alcohol in the bloodstream, typically measured as a percentage. For example, a BAC of 0.08% means there are 0.08 grams of alcohol per 100 millilitres of blood. Factors like bodyweight, metabolism, and alcohol tolerance influence how rapidly BAC peaks and declines.<\/div><\/div><\/div><\/td><\/tr><tr class=\"jet-table__body-row elementor-repeater-item-1efc83d\"><td class=\"jet-table__cell elementor-repeater-item-185da44 jet-table__body-cell\"><div class=\"jet-table__cell-inner\"><div class=\"jet-table__cell-content\"><div class=\"jet-table__cell-text\"><strong>Impairment<\/strong> refers to the decline in a person\u2019s mental or physical capabilities. This can affect essential driving skills such as reaction, decision-making, and coordination. Optalert defines impairment in its study through errors of omission in the Johns Test of Vigilance. This test tracks non-response to a visual stimulus, pinpointing moments when someone\u2019s attention falters.<\/div><\/div><\/div><\/td><\/tr><\/tbody>\n\t\t\t<\/table>\n\t\t<\/div>\n\n\t\t<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01606bf highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"01606bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The discovery: BAC leads, impairment follows hours later<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-208b095 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"208b095\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The trajectory of BAC was unsurprising. On average, it peaked 1.5 hours after drinking alcohol and took about 6 hours to fall back to 0.00%.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28d4c8c ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"28d4c8c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2106\" height=\"847\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1.png\" class=\"attachment-full size-full wp-image-7413\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1.png 2106w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1-300x121.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1-1024x412.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1-768x309.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1-1536x618.png 1536w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-over-time-1-2048x824.png 2048w\" sizes=\"(max-width: 2106px) 100vw, 2106px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8de0d6e fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"8de0d6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>However, people\u2019s impairment lagged far behind, peaking about 5 hours after drinking alcohol \u2013 even in participants well below the legal limit for driving under the influence (DUI)!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc1d44f ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"dc1d44f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_photomorph_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"2106\" height=\"850\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1.png\" class=\"attachment-full size-full wp-image-7414\" alt=\"\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1.png 2106w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-300x121.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-1024x413.png 1024w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-768x310.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-1536x620.png 1536w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/BAC-and-Impairment-over-time-1-2048x827.png 2048w\" sizes=\"(max-width: 2106px) 100vw, 2106px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-dce-background-image-url=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2023\/05\/bg-dots.svg\" class=\"elementor-section elementor-top-section elementor-element elementor-element-40575dcf dots big elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40575dcf\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;,&quot;background_motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;background_motion_fx_translateY_effect&quot;:&quot;yes&quot;,&quot;_ob_glider_is_slider&quot;:&quot;no&quot;,&quot;background_motion_fx_translateY_speed&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;background_motion_fx_translateY_affectedRange&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:{&quot;start&quot;:0,&quot;end&quot;:100}},&quot;background_motion_fx_devices&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-512a47f5\" data-id=\"512a47f5\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b247dcc highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"b247dcc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">This finding has major implications for road safety.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c6167e elementor-widget-divider--view-line ob-has-background-overlay elementor-widget elementor-widget-divider\" data-id=\"6c6167e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d598b7 highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"3d598b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Drivers remain significantly impaired for hours - even when BAC drops.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1933e4 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"d1933e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-7449 size-medium\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Alcohol_in_bloodstream_brain_becoming_impaired._M_ddbfb4d3-4498-4df6-a590-710f65e1f18c-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Alcohol_in_bloodstream_brain_becoming_impaired._M_ddbfb4d3-4498-4df6-a590-710f65e1f18c-300x300.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Alcohol_in_bloodstream_brain_becoming_impaired._M_ddbfb4d3-4498-4df6-a590-710f65e1f18c-150x150.png 150w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Alcohol_in_bloodstream_brain_becoming_impaired._M_ddbfb4d3-4498-4df6-a590-710f65e1f18c-768x768.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Alcohol_in_bloodstream_brain_becoming_impaired._M_ddbfb4d3-4498-4df6-a590-710f65e1f18c.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>This delay in impairment is striking because many drivers would assume they are \u201csober enough\u201d to drive as their BAC begins to drop.<\/p><p>However, their psychomotor impairment will actually be increasing for many hours. This lag effect is a powerful reminder that drivers with a BAC under the legal limit may still be impaired. In turn, a driver monitoring system could detect this and enact countermeasures to improve road safety.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-08efe00 elementor-widget-divider--view-line ob-has-background-overlay elementor-widget elementor-widget-divider\" data-id=\"08efe00\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ff1f8c highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"1ff1f8c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">This is why BAC and impairment do not correlate in previous research.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47021d7 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"47021d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-7450 size-medium\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Driver_impairment._Minimal_diagram._Use_colors_da_84c3481a-a85e-40a1-8c4b-1bd11f84f6b0-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Driver_impairment._Minimal_diagram._Use_colors_da_84c3481a-a85e-40a1-8c4b-1bd11f84f6b0-300x300.png 300w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Driver_impairment._Minimal_diagram._Use_colors_da_84c3481a-a85e-40a1-8c4b-1bd11f84f6b0-150x150.png 150w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Driver_impairment._Minimal_diagram._Use_colors_da_84c3481a-a85e-40a1-8c4b-1bd11f84f6b0-768x768.png 768w, https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/paulzubrinich_Driver_impairment._Minimal_diagram._Use_colors_da_84c3481a-a85e-40a1-8c4b-1bd11f84f6b0.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>The difference between BAC and impairment can be attributed to how alcohol affects the brain and body.\u00a0<\/p><p>After drinking, alcohol spreads quickly through the bloodstream. While BAC measures how much alcohol is in the blood at a given time, this elevated level of alcohol has yet to have full impact on the impairment levels. This is why we saw BAC peaking around the 90-minute mark in our study, but impairment rising far more slowly and persisting a lot longer. Many participants were significantly impaired above baseline even when they had returned to a BAC of 0.00%.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e960e6 elementor-widget-divider--view-line ob-has-background-overlay elementor-widget elementor-widget-divider\" data-id=\"6e960e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68601a1 highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"68601a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What questions remain unanswered?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-306c417 fatigue ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"306c417\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>This work needs to be replicated in an on-track study validating against an objective performance metric such as two wheels out of lane (WOOL) twice within 15 minutes (WOOL 2\u00d715).<\/li>\n<li>In our study, participants rapidly consumed a large dose of alcohol and then had no more for the rest of the day. Obviously, this does not match how people usually consume alcohol in naturalistic scenarios. A longer drinking period prior to cessation should be studied to see how impairment progresses when the ascending BAC curve is longer.<\/li>\n<li>This research only looked at psychomotor impairment. Further work needs to be done on impaired judgement and especially increased risk-seeking behaviours and aggression. This may peak in the earlier excitatory phase of alcohol, before the later depressant effects develop.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3c5f0212 left-o elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3c5f0212\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;_ob_glider_is_slider&quot;:&quot;no&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-72d4b13f\" data-id=\"72d4b13f\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;,&quot;_ob_column_has_pseudo&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-54076ef3 elementor-hidden-desktop elementor-hidden-tablet ob-has-background-overlay elementor-widget elementor-widget-image\" data-id=\"54076ef3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.optalert.com\/wp-content\/uploads\/elementor\/thumbs\/iStock-1308374278-Large-q0757br6pi59lthvpuyt34r9vhav9hl1aewyixdjc8.jpg\" title=\"Hypnotic Cybernetic Abstract Artificial Intelligence Meditation Plexus Array\" alt=\"Cybernetic artificial intelligence in three-dimensional logic space on quantum computing communication of abstract Plexus elements array. 3D illustration concept loop for music, logic, and meditation.\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"ob-is-pseudo elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-555ca368\" data-id=\"555ca368\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;_ob_column_has_pseudo&quot;:&quot;yes&quot;,&quot;_ob_pseudo_before_popover_whyxrot&quot;:&quot;yes&quot;,&quot;_ob_pseudo_before_popover_border&quot;:&quot;yes&quot;,&quot;_ob_pseudo_after_popover_whyxrot&quot;:&quot;yes&quot;,&quot;_ob_column_hoveranimator&quot;:&quot;no&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1e7a9731 highlight ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-heading\" data-id=\"1e7a9731\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_harakiri_text_clip&quot;:&quot;none&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Optalert can help you validate your system<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58b8bfa2 ob-harakiri-inherit ob-has-background-overlay elementor-widget elementor-widget-text-editor\" data-id=\"58b8bfa2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_ob_use_harakiri&quot;:&quot;yes&quot;,&quot;_ob_harakiri_writing_mode&quot;:&quot;inherit&quot;,&quot;_ob_postman_use&quot;:&quot;no&quot;,&quot;_ob_widget_stalker_use&quot;:&quot;no&quot;,&quot;_ob_poopart_use&quot;:&quot;yes&quot;,&quot;_ob_shadough_use&quot;:&quot;no&quot;,&quot;_ob_allow_hoveranimator&quot;:&quot;no&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>At Optalert, we are dedicated to advancing technology that improves road safety. Our team is continually researching new eyelid-based biomarkers to detect impairment and keep road users safe.<\/p><p><a href=\"https:\/\/www.optalert.com\/contact\/\">Contact Optalert to explore how we can work together to revolutionise the field of road safety.<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In the first of our three-part series about driver intoxication, we reveal how impairment persists for hours after blood alcohol concentration falls. BAC peaked 1.5 hours after drinking alcohol, while impairment peaked at the five-hour mark. Understanding the relationship between blood alcohol concentration (BAC) and impairment is critical to improving road safety and moving us [&hellip;]<\/p>\n","protected":false},"featured_media":7456,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"In our blog series on impairment, we examine how impairment and blood alcohol concentration measure very different attributes of a person\u2019s state.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"21","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"In our blog series on impairment, we examine how impairment and blood alcohol concentration measure very different attributes of a person\u2019s state.","_seopress_social_fb_img":"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Facebook-Preview-image.jpg","_seopress_social_fb_img_attachment_id":7474,"_seopress_social_fb_img_width":1200,"_seopress_social_fb_img_height":630,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"In our blog series on impairment, we examine how impairment and blood alcohol concentration measure very different attributes of a person\u2019s state.","_seopress_social_twitter_img":"https:\/\/www.optalert.com\/wp-content\/uploads\/2024\/11\/Twitter-preview-image.jpg","_seopress_social_twitter_img_attachment_id":7475,"_seopress_social_twitter_img_width":800,"_seopress_social_twitter_img_height":418,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"impairment,blood alcohol content,BAC","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[21],"tags":[117,118,115,116],"language":[135],"class_list":["post-7391","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automotive","tag-bac","tag-blood-alcohol-content","tag-driver-impairment","tag-impairment","language-english"],"_links":{"self":[{"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/posts\/7391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/comments?post=7391"}],"version-history":[{"count":13,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/posts\/7391\/revisions"}],"predecessor-version":[{"id":10673,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/posts\/7391\/revisions\/10673"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/media\/7456"}],"wp:attachment":[{"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/media?parent=7391"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/categories?post=7391"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/tags?post=7391"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/www.optalert.com\/pt\/wp-json\/wp\/v2\/language?post=7391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}