Plus there are other factors to consider, such as fatigue and emotion, than can compromise your reflexes.)First you need to find out what your blood alcohol concentration (BAC) is, and that requires a formula:%BAC = [a x (5.14 ?? w) x r] - 0.015 x hwhere a is the number of liquid ounces of alcohol consumed, w is weight, r is the alcohol distribution for ratio (0.73 for men and 0.66 for women) and