According to a new report, protein powders and shakes from some popular brands have high levels of lead and other metals.

Jumping on a treadmill isn't the only exercise that can help you lose weight and gain strength.

Weak glutes often play a role in common running injuries. The single-leg stance test shows you where your strength is lacking ...

How you breathe during strength training directly affects muscle engagement, core stability and power output. Dana Santas explains in the last of this five-part series.

Most pulled muscles can be treated effectively at home within a few weeks. But more severe strains may require you to see a ...

To know whether you have narcolepsy, it's important to recognize a few common symptoms, such as excessive daytime sleepiness.

Sure, your body changes, but aging well isn’t about defying time—it’s about maintaining function, flexibility, and strength ...

If you're waking up fatigued and with your teeth clenched, or you have chronic jaw pain or dental sensitivity you might have ...

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It is wise to practice taking military fitness tests, long before the real ones count toward your record or your chances of ...

How fit are you really? Even if you’re an enthusiastic exerciser, the answer may surprise you. There are no end of ...

Several science-backed approaches can help build lean muscle, including resistance training, sleeping enough, and eating a ...