Fitness basics
Learning Center
Diarrhea
Learn more about what causes this common digestive condition, and how you can treat and prevent it.
Diskectomy
This surgical procedure removes the damaged portion of a herniated disk in the spine. It's most effective for pain radiating down the arms or legs.
Dry orgasm
It's possible for men to reach sexual climax without ejaculating. Learn about the possible causes.
Dysarthria
This condition affects muscles used for speaking. Speech therapy and treating the underlying cause may improve speech.
Early HIV symptoms: What are they?
Early signs of the disease can include fever, fatigue and swollen lymph glands. Learn more.
Easy bruising: Why does it happen?
Get the facts about easy bruising. Learn about causes and find out when it's a sign of a problem.
Exercise and chronic disease: Get the facts
Find out about the benefits of working out with a long-lasting disease and how to exercise safely.
Exercise and illness: Work out with a cold?
Play it smart. Ease up on exercise if you have a cold.
Exercise: 7 benefits of regular physical activity
Improve your heart health, mood, stamina and more with regular physical activity.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
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