Just as an overprotective parent can lead to fragile children, coddling your body can make you weak.

Fighters need to be ready for different amounts of effort at any moment. Mike Perry trains his athletes for that purpose.

If you participate in sports or gym activities that require high energy outputs for two to three minutes, you need to make sure you are ingesting plenty of carbohydrates.

A basic understanding of how your body produces energy can shed light on the way you should train.