Staying healthy
Learning Center
Genital herpes: Can you get it from a toilet seat?
It is nearly impossible to get genital herpes from a toilet seat.
Germs: Understand and protect against bacteria, viruses and infections
Learn how to protect against bacteria, viruses and infections.
HPV infection: How does it cause cervical cancer?
Cervical cancer is most often caused by a genital human papillomavirus (HPV) infection.
Hand swelling during exercise: A concern?
This condition is a common problem, but rarely serious enough to disrupt your routine.
Hand-washing: Do's and don'ts
Done properly, hand-washing is a simple way to prevent the spread of germs and avoid getting sick.
Headaches and hormones: What's the connection?
Headaches are part of life for many people. Understand how hormones can play a role.
Healthy habits that boost happiness
By choosing healthy habits, you can decrease your stress and do more of the things that bring you joy. Learn habits that can lead to living a happier life.
Hemangioma
This red mark on a baby's skin looks like a rubbery bump or flat red mark and is made up of extra blood vessels in the skin. It generally goes away by age 10. Learn more about its causes and treatment.
Hemorrhoids
There are many effective options for easing the discomfort of hemorrhoids — swollen veins in the anus and lower rectum.
Hepatitis C: How common is sexual transmission?
Although hepatitis C is highly contagious, the risk of sexual transmission is very low.
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