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 ...

Forget what you’ve heard about "toning" vs. "building"—science proves all muscle is created equal, and your ultimate look depends on two factors you can actually control.

Muscle-on-chip systems are three-dimensional human muscle cell bundles cultured on collagen scaffolds. A Stanford University research team sent some of these systems to the International Space Station ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Your anatomy operates like a machine, it's success hinging on the work of over 70 organs, each with a unique function. From the heart's blood-pumping ability to the liver's filtering power, each ...

The first comprehensive cell atlas of aging human muscle reveals the intricate genetic and cellular processes behind muscle deterioration and mechanisms to counteract it. How muscle changes with ...

Exercises to rebuild muscle after 50, with exclusive advice from a posture expert plus 4 daily standing moves to start today.

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