You, the sweaty awkward one: you look like the type that desperately justifies your daily drinking. Science says it's good for your heart or your mind or something, right? Wrong! Lush!
For some scientists, the question will not go away. No study, these critics say, has ever proved a causal relationship between moderate drinking and lower risk of death - only that the two often go together. It may be that moderate drinking is just something healthy people tend to do, not something that makes people healthy.