As alcohol levels rise in a person’s system, the negative effects on the central nervous system increase. Alcohol is absorbed directly through the walls of the stomach and small intestine. Then it passes into the bloodstream where it accumulates until it is metabolized by the liver. A person's alcohol level...

Although 14 percent of drivers in alcohol-related fatal crashes in 2002 were between 16 and 20, this age group represents only 7 percent of the population. Likewise, 49 percent of drivers in alcohol-related fatal crashes were ages 21 to 45, and this age group makes up 35 percent of the...