Unexplained muscle pain in the arms and legs may be the result of benign issues. Or it may point to a more serious underlying condition, such as fibromyalgia, infection, or thyroid issues. Muscle pain ...

Biceps tendonitis is an inflammation or irritation of the upper biceps tendon. The upper biceps tendon is also called the long head of the biceps tendon. This strong, cord-like structure connects the ...

Sore arms and biceps after a challenging upper-body workout are normal maybe even to be expected, since sore muscles are part of the natural muscle-repair process that ultimately makes you stronger.

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! If you’re sore from a workout and looking for a productive ...

Repeatedly doing the same type of activity — whether it’s running, lifting or sitting — can have serious downsides. By Hilary Achauer When you head out for your daily run, with each stride you’re ...