The beginning of a workout is often the easiest part. After slipping on your best activewear and loading up an energizing playlist, you may feel invincible when you start your exercise routine. But ...

Aug. 23 -- When U.S. swimmer Natalie Coughlin reached the final 15 meters of the 100-meter backstroke competition in Athens, she felt her body scream. "That last 50 hurt a lot," she said, after ...

Have you ever had one of those days when your muscles feel heavy, and you’re just too tired to work out? Well, don’t worry; all athletes feel that way once in a while. Now, the question is will you ...

High cholesterol describes a waxy substance found in your blood. What’s worse, too much of this fatty culprit can lay the groundwork for serious health problems like heart disease and strokes without ...

Lactic acid, produced in the muscles from intense exercise, enhances performance rather than reduces it as commonly believed, according to a new study. A team of Australian and Danish researchers ...

Lactic acid. Also know as the “burn” you feel on that last rep or final sprint, most athletes see it as a workout’s worst enemy, the cause of muscle soreness and fatigue. But what if everything you ...

Fatigue occurs when muscles become weaker with repeated or intense exercise, or as a result of an illness. Researchers have long thought that fatigue is caused by a build-up of lactic acid in the ...

You’ve been at the New York State Fair for hours. You’re getting cranky because you’re tired and sore. A good place to get relief and buy products that can soothe your aching feel and muscles is the ...

A recent study conducted by researchers at the University of Alabama at Birmingham and Johns Hopkins University School of Medicine published in PLOS ONE shows that symptoms of chronic fatigue syndrome ...

This is Your Quick Training Tip, a chance to learn how to work smarter in just a few moments so you can get right to your workout. If you pump iron with purpose, you know what failure feels like. Not ...