Fitness basics
Learning Center
White stool: Should I be concerned?
White stool may mean a serious liver problem. Learn about causes.
How opioid use disorder occurs
Opioids act on the brain in powerful and potentially dangerous ways. Find out why no one is safe from opioid use disorder and learn what raises the risk.
Hepatitis C: How common is sexual transmission?
Although hepatitis C is highly contagious, the risk of sexual transmission is very low.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Sickle cell anemia
Learn about the symptoms, causes and treatment of this inherited blood disorder that, in the United States, is more common among Black people.
Teens and social media use: What's the impact?
Find out how to help limit the negative impact of these popular apps on your teenager.
Mayo Clinic Minute: What is the Asian longhorned tick?
Learn about the Asian longhorned tick, where it's found, and how to prevent tick bites.
HPV infection
This common viral infection often gets better on its own, but when it doesn't, it may cause a variety of warts and can even lead to some cancers.
Astigmatism
Imperfect curvature of your eye can cause blurred distance and near vision. Learn about this common and treatable eye condition.
Lead poisoning
Learn about lead poisoning symptoms and treatment of lead exposure in children and adults. Explore ways to keep your kids safe from lead exposure.
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