Aerobic exercise
Learning Center
Gallbladder polyps: Can they be cancerous?
The size of gallbladder polyps can be a useful predictor of whether they're cancerous.
Groin pain (male)
Learn more about the causes and symptoms of this type of pain. Also find out how you can treat it at home and when to get a checkup.
HER2-positive breast cancer: What is it?
HER2-positive breast cancer tends to be more aggressive than other types of breast cancer. Treatments that target HER2 are very effective.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
HPV vaccine: Who needs it, how it works
Learn about how the HPV vaccine works, who needs it and what side effects to expect.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Heart cancer: Is there such a thing?
Although heart tumors do occur, the vast majority of them are noncancerous (benign).
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Henoch-Schonlein purpura
Learn about the symptoms, causes and treatment of this blood vessel disease, also called IgA vasculitis, that causes a purplish rash on the lower legs.
Home birth: Know the pros and cons
Understand the possible risks and how to plan and prepare for a home birth.
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