Photo: Getty Images I don't have time to do a cardio and a weight workout. Which one should I give up? – Kathleen Boyd, Stanford, Conn. There are two myths we can bust here. The first: You have to spend hours a day to get in shape and ...

If we continue at the rate we're going, the entire U.S. population will be obese in 50 years. That's what a recent University of Missouri study suggests, anyway. Even if it doesn't turn out to be completely true, it's easy to see how it can still end ...

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We all need something to aim for -- find your ideal challenge and start training for it. ...

Photo: Getty Images Did you just train for -- and compete in -- your first 5K, 10K, marathon, triathlon or other fitness feat? We want to share your story with the world! Let us know why you decided ...

Photo: Getty Images They say ignorance is bliss, so it's often easier to indulge in an unhealthy snack or meal when you don't know exactly how much exercise you would need to do to burn it off. Sure, some of you might say, "I don't care. ...

Generally speaking, resistance training is anaerobic, in that it does not utilize a great deal of oxygen but is still intense enough to trigger what's known as anaerobic metabolism. Be this as it may, it's entirely possible to turn your resistance ...

Medicine balls, also known as "med balls," are weighted balls about 14 inches in diameter and available in weights ranging from two to 25 pounds. They can be used for strength and agility training, physical therapy and injury rehabilitation, and ...