Fitness basics
Learning Center
High blood pressure dangers: Hypertension's effects on your body
If blood pressure stays high, it can cause other health conditions. Find out more about these complications.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Treating asthma in children ages 5 to 11
Learn more about this airway condition in kids 5 to 11 years old. Get the facts on symptoms, treatments and asthma action plans.
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.
Insomnia
This disorder can make it hard to fall asleep, hard to stay asleep or both, even though you have the chance for enough sleep. It can drain your energy.
Bone and joint problems associated with diabetes
If you have diabetes, you're at increased risk of various bone and joint disorders.
Bipolar disorder and alcoholism: Are they related?
These disorders often occur together, and they can be a dangerous mix. Having both conditions makes mood swings, depression, violence and suicide more likely.
Paraneoplastic syndromes of the nervous system
This group of conditions affects people who have cancer and occurs when parts of the immune system attack parts of the nervous system.
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.
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