As you bite into a crisp apple, your jaw muscle contracts, allowing you to grind the fruit between your teeth. When you climb a flight of stairs, your gluteus maximus (or "glutes") push your body ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When it comes to weightlifting, people hit the gym for a plethora of reasons. Maybe you want to improve ...

Peloton's Tunde Oyeneyin finds that the lessons her mom taught her make her who she is, including that her mind is her strongest muscle. It’s been some time since we’ve laid our eyes on one another.

A 4-time World's Strongest Man recommends prioritizing squats, weighted carries, and sandbag lifts. The exercises build full-body strength and muscle, especially in your core. The movements can also ...

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