Hey John, that’s a really interesting video on the effects of sleep on testosterone levels. I know that can really mess with hormone levels. The same thing happens during extreme dieting and many competitive bodybuilders have the T levels of 90 year old men pre-contest. I’ve always been diligent about getting enough sleep and a bad night for me was 7 or 8 hours. I’ve also never gone much under 2,500 calories per day. As far as overtraining, I had periods where I would get so burnt out I would take a week off and then reset my program and work back up to my previous weights over the course of a month or so. Even during these easy periods the symptoms were all there. Before going on TRT my blood pressure, lipids, and body fat levels were all really good so I don’t think metabolic syndrome was at work. Thanks for the resource!