Stress basics
Learning Center
Brain AVM (arteriovenous malformation)
Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
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.
Bladder outlet obstruction: Causes in men?
Find out more about the causes of male bladder outlet obstruction and possible next steps.
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.
Birth control pill FAQ: Benefits, risks and choices
The birth control pill is surrounded by misinformation. Get the facts on common concerns and questions about taking the pill.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Benign prostatic hyperplasia (BPH)
This common problem, also known as an enlarged prostate, can be treated.
Belly fat in men: Why weight loss matters
Belly fat can be dangerous. Understand why and how to get rid of it.
Atypical hyperplasia of the breast
Learn how a diagnosis of atypical lobular hyperplasia or atypical ductal hyperplasia affects your risk of breast cancer and what you can do.
Alzheimer's genes: Are you at risk?
What role do genes play in developing Alzheimer's? Are you at risk?
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