Blood Alcohol Concentration (BAC) is used in measuring the level of alcohol intoxication in the body. One start feeling in a good mood or warm and fuzzy when BAC is in the range of 0.02 - 0.04%
Usually, after a couple of weeks you'll notice slight changes. These changes can include the strengthening of your muscles, gaining more stamina, being able to do more repetitions of an exercise, etc...
