> The authors of the paper went out of their way to say it. 2/3rds of the way through. I'm glad myself and others point this out. I personally read the whole

> The authors of the paper went out of their way to say it. 2/3rds of the way through. I'm glad myself and others point this out. I personally read the whole article. That's time I can't get back. In the interest of keeping HN content worthwhile, people can and should point this sort of thing out. Plus, the title isn't exercise and sleep correlate with health. The title implies causation.