Jennifer Frederick didn't understand why she had a growing lump under her skin. A doctor returned a devastating diagnosis.

Feeling a dull ache in the centre of her left shoulder, Emma Mapp thought she had simply tweaked a muscle while working out at the gym.

When 16-year-old Tessa McHugh brushed shoulders with a classmate during a casual game of school sport, she didn't think twice ...

When 16-year-old Tessa McHugh brushed shoulders with a classmate during a casual game of school sport, she didn't think twice ...

Getting jacked can be a touchy topic. MH experts share what you need to know for workout success.

The 44-year-old digital marketing manager from Bournemouth, England, first noticed the lump while in a yoga class with a friend. She described it as being "bigger than a golf ball" and attributed it ...

Arm stretches can improve posture, enhance range of motion, and build muscle. Here, fitness experts offer the best arm stretches and exercises to try at home.

Will Trump’s Strikes on Iran Unleash a Global Arms Race? Since World War II, nonproliferation efforts have limited the number of countries with nuclear weapons. That may be about to change.

Discover how a biceps rupture happens, what signs to look for, and the best ways to treat it through physical therapy, medication, or surgery.

In “Stronger: The Untold Story of Muscle in Our Lives,” Mr. Gross writes on physical culture—“the multitude of practices by which people pursue health, strength, endurance, beauty, and ...

Missing Hiker Survived for 9 Days on Bugs, with a Broken Arm, Before Being Found in the Himalayas: Family Samuel Vengrinovich left his belongings at a campsite in the Himalayas, but injured ...

A couple of years ago, I noticed tiny, flesh-coloured bumps on my fingers that itched like nobody’s business. These, I have since learned, are pompholyx or dyshidrotic eczema – a condition ...