Fitness basics
Learning Center
Male menopause: Myth or reality?
Male menopause is a catchy phrase, but it isn't accurate. Here's why.
Post-vasectomy pain syndrome
Learn about post-vasectomy pain syndrome (PVPS) — How it happens after a vasectomy, tests to diagnose it and treatment options.
How you hear
Your ears enable you to gather and interpret sounds from the world around you.
Types of dermatitis
Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
How your brain works
Which part of your brain does what? Take a tour.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
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