alt Hacker NewsNo if they correlate strongly: people eating more vegetables are more likely to do sport, and care about sleeping. Not to mention visiting a doctor much often. That is just one example.
No if they correlate strongly: people eating more vegetables are more likely to do sport, and care about sleeping. Not to mention visiting a doctor much often. That is just one example.
Yeah this is a major issue. The first study that reports a link between some specific thing and health pollutes the data for all follow-up studies, because the folks that care the most about their health are going to change their behavior based on it. So after that you will always see a correlation with all the other things that have been reported to be healthy.