You run the best track workout of your life. Four repeat miles, and you feel like Moses Kiptanui. You hang around in your sweat-drenched clothes, talking splits with the other runners, and savoring the atmosphere. The next morning you wake up with the Russian Army marching down your throat. You have the flu.

Burn fat. Lose fat. Fat free. Fat-related messages bombard us constantly. Yet, much of what is written about fat metabolism is hogwash. There is a lot of misinformation circulating about how our bodies store and lose fat, and when our muscles use fat to produce energy. Two concepts that are often confused are: 1) the role of fat as a fuel during exercise; and 2) how to reduce body fat. Most RT readers shouldn’t be concerned with reducing their already low body fat levels, but

The scandals that plagued the 1998 Tour de France largely surrounded the systematic abuse of the synthetic hormone EPO to improve...

You train for 5 months for the big day. You've done 23 long runs, worn out the inside lane on your local track, spent a small fortune on massage and new shoes. You are the fittest that you have ever been. The gun fires and you feel great. You are on personal best pace for 18 miles. Then something starts to go wrong. You feel progressively more sluggish. By 22 miles, you've slowed down to the old familiar death trot. Guess you need to train harder next time....

Summer is here, along with the twin menaces of heat and humidity. Running in the heat can quickly lead to dehydration, which ranks up there with dobermans among runners' worst enemies. Dehydration hurts your performance, and slows your ability to recover for the next workout. Continuing to run when dehydrated can lead to heat stroke and death.