What is BAC and why does it impact men and women differently?

Arrests and convictions for driving under the influence (DUI) and driving while intoxicated (DWI) -- even when no one is hurt -- can be costly, time-consuming and life-changing. It's important for you to know when you've reached the legal intoxication limit even when you don't feel drunk. And it can be even more important if you are a woman, because you can often reach those limits faster than your male counterparts.