Fitness basics
Learning Center
Bladder cancer
Blood in the urine (hematuria) sometimes is a sign of bladder cancer. Learn about other bladder cancer signs and symptoms and explore treatment options.
Bicuspid aortic valve
This condition, present at birth, affects the valve between the lower left heart chamber and the body's main artery. Know the symptoms and treatment.
Benign prostatic hyperplasia (BPH)
This common problem, also known as an enlarged prostate, can be treated.
Belly fat in women: Taking — and keeping — it off
Belly fat is more common after menopause. Find out why and learn how to keep it off.
Belching, gas and bloating: Tips for reducing them
Find out how you can lessen uncomfortable belching, gas and bloating.
Bedsores (pressure ulcers)
These areas of damaged skin and tissue are caused by sustained pressure — often from a bed or wheelchair — that reduces blood flow to vulnerable areas of the body.
Basal cell carcinoma
Learn about symptoms, treatment and prevention of this common skin cancer that often occurs on the head and neck.
Balance exercises
These exercises can improve balance and help prevent falls. See how they're done.
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
Baby's head shape: Cause for concern?
Concerned about your baby's head shape? Understand what you can do to care for flat spots.
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