Hacker News

The media misrepresents and exaggerates the science.

There's also a problem with p hacking in science. Scientists looking for a correlation and removing all the data that doesn't show a correlation. You end up with what appears a good chance of correlation. However, you don't see all the other data which would suggest the p value obtained is random noise.

Wine is fermented fruit juice. So it'll have benefits of eating fruit and consuming fermented products. It also has alcohol which is bad for. If we mixed bleach and medicine it we would also find benefits from consuming some of such a mixture, we would also find lots of evidence that consuming it is bad for you. The sensible thing would be to only consume the medicine and not the bleach, but that would never make the headlines.

Additionally many observations in health studies correlating lifestyle choices can be associated with income/class. Those with higher incomes tend to drink wine rather than beer. They also consume more coffee. People with higher incomes tend to live longer and healthier life's (less stress, better healthcare, better living environment, more leisure etc), they also drink more coffee and wine.