The festive season is on us, which is a significant religious holiday of course. But also: bottoms up! In December, Australians drink 70% more than the their average intake over the other 11 months of the year. And the rest of the Summer (and most of Autumn) is one long jolly as well. We know heavy drinking is unwise but what are the health effects of light drinking? And are they the same for everyone? Let’s find out.