(from the article `alcohol consumption`) Because brain alcohol concentrations are difficult to measure directly, the effects of alcohol on the brain are calculated indirectly by noting the ... ...than 40 percent of fatal crashes in the United States in the 1980s—and pressure from interest groups (e.g., Mothers Against Drunk Driving...
See: blood alcohol content
(BAC) The amount of alcohol in the bloodstream measured in percentages. A BAC of 0.10 percent means that a person has 1 part alcohol per 1,000 parts blood in the body.