One possible reason people are reluctant to study this: high-intensity exercise is, or seems to be, much more dangerous. I sent a marathon-runner this: http:/

One possible reason people are reluctant to study this: high-intensity exercise is, or seems to be, much more dangerous. I sent a marathon-runner this: http://lupoleboucher.livejournal.com/30217.html http://lupoleboucher.livejournal.com/30217.html She tried it once, threw up, and could do any serious exercise for about a month and a half.