Exercise generally increases white blood cell count, but chronic overtraining can cause a WBC drop. Learn more here.

Discover what the average 5K running time is, based on your age group and sex. Plus, get expert-approved tips on how to train ...

A tetanus shot can give you a sore arm for a few days. You can still exercise after one, but you might want to rest your arm.

Walking up stairs is a common daily task, but pain, injury, or lack of strength can make the climb more challenging. Here's ...

Genetics are responsible for some — but not all — of your calf shape. Here’s how to strengthen this important muscle group.

Workouts for women over 50 need not be intimidating or time consuming. They can be invigorating and fun while helping to improve mobility and strength.

Chest pain in your upper-left chest during exercise and when lying down can occur for various reasons. Discover them here.

Burping during exercise, like running, is more common than you think. Discover why it happens in the first place, and how to ...

Is your hamstring injured? Train cardio with exercises that don’t involve the legs or minimize their use to help maintain ...