Fitness basics
Learning Center
How fit are you? See how you measure up
Find your fitness level with these simple fitness tests.
Hormone therapy for prostate cancer
Find out what to expect during testosterone-blocking therapy. Learn about choices, including medicines and surgery.
Hemangioma
This red mark on a baby's skin looks like a rubbery bump or flat red mark and is made up of extra blood vessels in the skin. It generally goes away by age 10. Learn more about its causes and treatment.
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.
Heart failure and sex: Is it safe?
Many people with heart failure worry that sex might harm their hearts. How do you know when sex is OK? Cardiac rehab and counseling can help.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
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.
Friendships: Enrich your life and improve your health
Friendships can have a major impact on your health and well-being. Follow these tips to make and sustain lasting friendships.
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
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