Quit-smoking basics
Learning Center
Scrotal masses
Lumps in the scrotum have various causes. Even painless lumps should be checked promptly by a health care professional.
Seasonal allergies: Nip them in the bud
Learn about treatments and tips to manage seasonal allergies.
Senior sex: Tips for older men
Sex isn't just for the young. Get tips for staying active, creative and satisfied as you age.
Sex during pregnancy: What's OK, what's not
Questions about sex during pregnancy? Here's what you need to know.
Shingles vaccine: Should I get it?
People who are age 50 and older should get this vaccine to prevent shingles.
Sitting risks: How harmful is too much sitting?
Sitting for long periods — such as in front of the TV or at a desk — appears to increase risk of death from cardiovascular disease and cancer.
Smokeless tobacco products
Learn the risks of using products such as chewing tobacco, snuff and snus.
Spermatocele
Learn more about this noncancerous testicular disorder that may require surgery if it's causing discomfort. But, the condition often needs no treatment.
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.
Stomach flu: How long am I contagious?
Depending on which virus causes your stomach illness, you can be contagious from a few days to two weeks or more.
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