Biceps curl with weight machine

Epinephrine and exercise

This animation shows the release of epinephrine and its effect of the heart.

• Exercise & Fitness

Cornea transplant

Video shows how full-thickness and partial-thickness cornea transplants are performed.

Tramadol: Drug Interactions and Safety Concerns

An overview of potential drug interactions with tramadol and safety concerns. Learn more about tramadol at: https://www.drugs.com/tramadol.html

• Tramadol

Simple squat and reach exercises with fitness ball

You can do many exercises with a fitness ball. See the simple squat and reach.

Squat with dumbbell exercise for leg muscles

The squat with dumbbells is an exercise that targets the leg muscles. See how it's done.