Fats serve many purposes in the body including insulation against ambient temperature, cushioning in and around the joints, hormone production, and, yes, as a source of fuel.
Physiology
Articles focused on biological processes and physiology relevant for personal trainers and their clients.
Diets Don’t Work
Diets don't work. Millions of people each year diet and come to the conclusion that diets don't work. Perhaps a new approach is needed. Actually, it is not a new concept, just a different view. With...
Improving Cardiorespiratory Endurance
Improving cardiorespiratory endurance shouldn't be a goal for athletes only. Here's what personal trainers need to know about this important general fitness variable. Cardiorespiratory Endurance =...
The Role of Insulin in Weight Training: What Personal Trainers Need to Know
Insulin is one of the body’s most important hormones, and it is of particular interest for bodybuilders who train naturally.
Is There a ‘Male Menopause’? Testosterone Decreases with Age
Is there a ‘Male Menopause’? The accurate answer to this question, of course, is no, as menopause refers to the cessation of menstruation in women. However once a man reaches the age of 30, the testosterone production in his body will decrease by an average rate of 1-2% per year.