Heavy drinking is linked to a range of serious health consequences.
These include certain cancers, liver and heart disease, and damage to the nervous system, including the brain.
However, as has been exhaustively covered in the popular press, drinking in moderation might have certain health benefits.
A number of studies have concluded that drinking alcohol at a low level could have a protective effect.
One study, for instance, found that light and moderate drinking protected against all-cause mortality, as well as mortality related to cardiovascular disease.