Surprising: one of the healthy habits mentioned is drinking alcohol only in moderation (defined in this study as just under 2 units for women and 4 units for men daily) . If I drank any alcohol on a daily basis, I would be scared that it would go downhill from there. Habits are hard to change, so better do not pick up bad ones at all. I'm convinced that just avoiding to do stupid things is half the battle already.
That one doesn't make any sense to me. Alcohol is basically poison. Perhaps small amounts of it won't do any harm to you, but how could it possibly have a positive effect on your health?
1. The social benefit. There's research showing that if you have a rich social life and friend network, you live longer. The assumption being that the drink is likely to be with other people.
2. The stress management benefit. It's not healthy to be stressed out. The alcohol's mitigating effect on stress may be greater than the alcohol's poisonous effect, in the right dose, for the right person.