To drink or not to drink, that is ... actually not the question most healthy adults should be asking. There is, after all, general agreement that binge drinking and heavy drinking are bad for your health and life more generally. And few alcohol experts argue that abstaining from alcohol is bad for you. But there are very mixed messages, based on imperfect studies, about the health risks — or benefits — of moderate drinking. Public health guidance is veering toward temperance, but with some important caveats. So is it better to tipple or teetotal? Here's what you should know.