Hacker News new | ask | show | jobs
by jghn 1617 days ago
It's because for years there was a claim that low levels of consumption was beneficial, not just safe. They're working to undo that conventional wisdom.

I don't recall there ever being a time when people espoused short drives as being beneficial for one's health.

2 comments

To quibble, something can be "unsafe" i.e. harm you in certain ways, and also carry health benefits, since "health benefits" does not merely translate to "life expectancy". In fact for the study in question, compare impact on different organs; for some there is a harm, for others a marginal benefit (if I remember correctly).

This is the problem with pop sci headlines, they don't give you context. If one study finds that some compound has potential benefits in one specific physiological region, the news will read "x is good for your health", and vise versa.

Looking at just mortality, we can more accurately say, for those touting this study, "there is no evidence alcohol consumption improves mortality", and also "low alcohol consumption may weakly worsen mortality rates".

A lot of studies on alcohol and mortality show a J curve where mortality actually drops, and then starts rising until it's back at baseline at 4 drinks / day. Now, I am not saying that it's safe to drink 4 drinks per day. That's a lot. What I am saying is that is the point where cardiovascular benefits seem to be outweighed by the increased cancer risks. Many studies have called the J curve into question due to the 'sick quitter' effect, but you have to realize that by trying to correct for that effect they are often just adding a fudge factor to the numbers. Alcohol is a very hard subject to study because it's always self reported, and thus almost always under reported.
Correlation doesn't equate to causation. Perhaps the people that sit down with a glass of wine at night are the ones simply taking a slower pace in life and have less stress as a result.

However be that as it may I'm not giving up alcohol lol. I only drink occasionally and I enjoy it and I simply don't care if it's bad for me. Lots of things are bad for us.