[xiaoma]

I'm not angry, but I have noticed you have a certain axe to grind and that you have a tendency to cherry-pick citations to support it, make sweeping comments that go against the bulk of current research and that you're extremely hostile to those who disagree with you. I was only reminding you of the guidelines since belligerence wins over nobody and makes HN a less pleasant place to be.

>good luck with your suggestion of 1 hr of cardio/day to people new to fitness... lmk how that pans out!

Giving you the benefit of the doubt that you were asking in earnest... can only assume you're referring to what I shared earlier on HN—pretty much everyone who joined my high school swim team team made tremendous improvements in their fitness levels. Ditto for sedentary students joining cross-country. It already "panned out" years ago and it was a huge success!