Overview Once you drink alcohol, your body starts to degrade it practically right away, so how long does alcohol actually remain in your body? Whether you are subject to a drug test or are concerned about your own safety by getting drunk or want to know how to help someone through alcohol abuse or addiction, alcohol being excreted through the body should be understood and how to avoid dealing with the problems of an alcohol overdose. How is Alcohol Measured in the Body? Alcohol can be assayed most often in terms of Blood Alcohol Concentration (BAC) and this is given as the percentage of alcohol in the blood. Most of the states would have a legal limit of 0.08 percent as the driving limit. But alcohol may be found at different times after consumptions by the use of various methods of testing found to detect the alcohol: Blood Tests: It will detect alcohol within 12 hrs after the last drink. Breath Tests: Used by law enforcement, breathalyzers detect alcohol for up to 24 hours. Urine...