The American Journal of Medicine has published a study entitled Adopting Moderate Alcohol Consumption in Middle Age: Subsequent Cardiovascular Events which seems to show a benefit to heart health from starting to drink alcohol – moderately – in middle age.

Image by Photogen
According to the Reuters story, the leader of the study, Dr Dana King, described this as a “natural experiment” – the participants, who were part of a 10-year Atherosclerosis Risk in Communities study, began drinking not as part of the study but for their own reasons. Strictly speaking, then, this isn’t an experiment at all (since there was no manipulation of the condition, drinking versus non-drinking), and it therefore doesn’t prove causation. There may be some unobserved third factor which is reducing these participants’ cardiac risk and also causing them to take up drinking, though it seems unlikely. The probabilities are that moderate drinking does actually improve your heart health, but it’s certainly not proven.
I couldn’t access the whole study, unfortunately – Massey University doesn’t subscribe to the American Journal of Medicine – but the abstract does mention that “there was no difference in all-cause mortality between the new drinkers and persistent nondrinkers”. I take that to mean that drinking wasn’t preventing fatal heart attacks, but it was reducing the incidence of non-fatal ones.
Since I find I don’t sleep well when I drink alcohol I won’t necessarily be starting it as a regular practice, and I think I’ll keep the disclaimer in my Healthy Lifestyle CD’s moderate drinking track that says, approximately, “If you don’t drink at all, switch off now, I’m not going to advise you to start drinking just for some possible health benefit that isn’t even proven.” But this is another pointer to the possible health benefits from moderate drinking.
Technorati: alcohol • cardiac • drinking • heart health
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