Testicular atrophy means the testes inside the scrotum ("ball sack") shrink. It is a treatable medical condition. Learn how ...

The right cardio machine for you may depend on your goals. Ellipticals reduce pressure on your joints, while treadmills can ...

Xylitol is a natural sugar alcohol found in fruits and veggies. It tastes sweet and is a great diabetes-friendly alternative ...

A dull feeling in your left arm could be from overuse or strain. Learn what causes pain on this part of the arm here and ...