‘‘Women’s bodies differ from men’s bodies in a number of ways that make them react differently to alcohol. For one, women are generally smaller than men, and their bodies have a larger percentage of fat, which causes them to develop higher blood alcohol concentrations than men after drinking similar amounts of alcohol.
There is also a chemical called alcohol dehydrogenase than breaks down some of the alcohol in the stomach before it gets absorbed into the blood. Women under 40 years of age appear to have less of this in their stomachs, so, compared to men, more of the alcohol they drink gets absorbed into the blood. In fact, after a given dose of alcohol, a woman may achieve a blood alcohol level 25 to 30 per cent higher than a man. Women should know that they will likely be considerably more impaired than their male companions if they drink comparable amounts of alcohol.’’
Buzzed: The Straight Facts About the Most Used and Abused Drugs from Alcohol to Ecstasy
Cynthia Kuhn, PhD, Scott Swartzwelder, PhD, and Wilkie Wilson, PhD
WW Norton and Co (2014)