Growth hormone may rise 300 percent with exercise: Acute increases also occur in cortisol, adrenaline, and noradrenaline

The figure below (click to enlarge) is from the outstanding book Physiology of sport and exercise, by Jack H. Wilmore, David L. Costill, and W. Larry Kenney. If you are serious about endurance or resistance exercise, or want to have a deeper understanding of exercise physiology beyond what one can get in popular exercise books, this book should be in your personal and/or institutional library. It

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How much protein does one need to be in nitrogen balance?

This post has been revised and re-published. The original comments are preserved below.

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Long distance running causes heart disease, unless it doesn’t

Regardless of type of exercise, disease markers are generally associated with intensity of exertion over time. This association follows a J-curve pattern. Do too little of it, and you have more disease; do too much, and incidence of disease goes up. There is always an optimal point, for each type of exercise and marker. A J curve is actually a U curve, with a shortened left end. The reason for

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Why red meat consumption may appear unhealthy in scientific studies

var citeN=0; There have been many academic articles in the past linking red meat intake with increased mortality, and there will be more in the future. I discussed one such article before here (citeN=citeN+1;document.write(Number(citeN)), citeN=citeN+1;document.write(Number(citeN))). The findings in this article, which received an enormous amount of media attention, are the basis for my

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