overtraining

Your body needs proper rest during a training cycle, so try to avoid doing too much.

A study shows endurance athletes have chronically elevated cortisol levels. Should you be worried?

Burnout can ruin your training cycle. Follow these guidelines to stay healthy.

The proper balance of quality and quantity is key when developing a cross-training program.

To consistently run well, it's critical that you have an unwavering belief in your fitness and your race plan.

If any of these sound familiar, raise the alarm and head to the doc.

There are warning signs to look for, and they must not be taken lightly.

Most runners train too hard, too often.

No fancy equipment needed — just your finger, a notebook and one minute a day.

Follow these guidelines to stop injuries before they happen.

In training as in life, sometimes discretion is the better part of valor.

Not all hormones are created equal.