How many drinks before physical judgment is impaired?

Depends on your body mass, your own personal metabolism, and your tolerance for alcohol. Small people get drunk sooner than big people, and women usually have a lower tolerance for alcohol than men do. People of Asian ancestry ( including American Indians) have a lower tolerance for alcohol than Caucasians do.

On average, a small person will feel the effects of the second drink, and a large person will feel it by number three.