>Research often defines heavy drinking as more than 40 grams pure alcohol a day for women and 60 grams a day for men. Translated, that’s 1.4 ounces of liquor for women and 2.1 ounces for men.

To clarify this muddled statement (it's not clear that by "liquor" they mean "pure alcohol"), in the United States, a standard drink has 0.6 ounces (14 grams) of pure alcohol. That's a 12-oz 5% beer, or a 5-oz glass of wine.