Fitness basics
Learning Center
Enlarged breasts in men (gynecomastia)
Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Median arcuate ligament syndrome (MALS)
Stomach pain after eating isn't always indigestion. It could be MALS, also called celiac artery compression. Know the warning symptoms.
Hemolytic uremic syndrome (HUS)
Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.
Mild cognitive impairment (MCI)
Learn more about this stage between the typical cognitive decline of aging and the more serious decline of dementia.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Heart failure
Learn about this chronic disease that needs lifelong management. Find out what treatments help you live longer and may even strengthen your heart.
Stage 4 prostate cancer
Find out about diagnosis and treatment of this cancer that has spread to the lymph nodes or other parts of the body.
Knee pain
Learn about this common complaint, which can result from an injury or medical condition, and find out which treatments may help.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Chronic lymphocytic leukemia
Learn about this cancer that forms in white blood cells called lymphocytes. Treatments include chemotherapy, targeted therapy and immunotherapy.
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