I think that's not because of alcohol - I am a light drinker (3 a week, or less) now and it's because my life is better and I am healthier and not as stressed or poor. I can drink not daily because I'm not an addictive sort of person. Yeah my health is better now than the years I didn't drink but it's because I have more money, can get medical care, have time to exercise too, all the benefits of the easier lifestyle we finally reached.

I don't think it's so harmful, nor helpful, always take July & December as dry months and see no difference in how I feel.

I know that's anecdotal, but unless they are controlling for income and overall lifestyle, my guess is that light drinking is an indication of a healthy moderate sort of lifestyle not an actual healthy factor in one.