Fitness basics
Learning Center
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
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.
High cholesterol in children: How is it treated?
High cholesterol in children can lead to narrowed and hardened arteries, increasing the risk of heart disease later in life.
High cholesterol treatment: Does cinnamon lower cholesterol?
Can cinnamon lower cholesterol?
High-dose vitamin C: Can it kill cancer cells?
High-dose vitamin C has been touted by some as an effective alternative cancer treatment.
How to treat a piercing site infection
Learn what you can do at home if your ear new piercing becomes infected.
Is a home sperm test useful?
Using a home sperm test to check your fertility may not provide a clear answer.
L-arginine: Does it lower blood pressure?
This supplement may help some people lower their blood pressure. Learn who might benefit and who should stay away from it.
Loss of sex drive in men: Natural with aging?
Age-related loss of sex drive is normal, but sometimes an underlying condition is at play.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
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