They call it generalizing, but it's true. the economics prove it, I was just reading an article in the Economist last week of how alcohol sales in Russia are higher than in any other place in Eastern Europe (and with population porportions taken into matter as well.) Also as we know, Vodka (much stronger than beer, wine, or your usual spirits) is the pre-dominant alcohol there.
In a Putin-Tusk competition who do you think is going to die?
Tusk would. Putin (even though he hides it) is a massive and stable drinker. Apparently he was able to give this holiday address adter downing an entire bottle of Vodka on his own: that's a short version of it, search youtube more for the official one.