How much is too much?

Alcohol is measured in units.  One unit of alcohol contains 10ml of ethanol (or pure alcohol). 
Adults are advised to stick to the following recommended drinking levels:
Men: No more than 3-4 units per day and no more than 21 units per week
Women: No more than 2-3 units per day and no more than 14 units per week
We all need at least 2 days a week without alcohol. If pregnant or trying to conceive avoid alcohol.

What is meant by Binge Drinking?
Binge drinking is a term that is used often in the press. There is no internationally agreed definition of binge drinking, but in the UK, drinking surveys normally define binge drinkers as men consuming at least eight, and women at least six standard units of alcohol in a single day.