Fitness basics
Learning Center
Benign prostatic hyperplasia (BPH)
This common problem, also known as an enlarged prostate, can be treated.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Bladder infection in men
Although women are more likely to get bladder infections, men can get them, too. Learn about signs and symptoms and what could put you at risk.
Bladder outlet obstruction: Causes in men?
Find out more about the causes of male bladder outlet obstruction and possible next steps.
Blood donation
Find out what to expect during blood donation and how your blood will be used to help others.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Boot camp workout: Is it right for you?
Looking for a fitness challenge? If so, a boot camp workout might be for you.
CBD: Safe and effective?
Interested in using CBD? Here's what you need to know about the risks and benefits of using this drug.
Candida cleanse diet: What does it treat?
Candida cleanse diets that replace processed food with fresh foods improve health but don't necessarily stop yeast overgrowth.
Cholesterol-lowering supplements may be helpful
Diet and exercise are proven ways to reduce cholesterol. Cholesterol-lowering supplements might help, too.
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