Which exercises are most effective for your pecs? What to know.

Toned biceps, bigger shoulders, increased strength; whatever your goal is for your arms, you've got to train the muscles. But if you're new to upper-body workouts, this four-move dumbbell routine is ...

Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

Spinal muscular atrophy or “SMA” for short is a terrible disease in which a genetic mutation causes certain nerves responsible for sending signals to muscles to degenerate. This leads to muscles ...

You’ve been hitting the gym consistently, following your workout plan to the letter, and pushing yourself through every rep. In the beginning, the results were exciting—visible changes in the mirror, ...

Thirty marks the spot. Starting at this age, we begin to lose approximately three to eight percent of muscle mass per decade. With it, we also lose strength and mobility. Left unaddressed, this loss ...

As people age, muscles naturally lose mass and strength, a condition known as sarcopenia. The decline can make everyday activities harder and increases the risk of falls, disability and early death.

Medically reviewed by Mallory Christopherson, DCMedically reviewed by Mallory Christopherson, DC It's common for your muscles ...