Aerobic exercise
Learning Center
Exercise: How much do I need every day?
Find out how much exercise you need and how to get it.
Flu shots for kids: Does my child need a flu shot?
Know the latest recommendations for children's flu vaccines.
Foot swelling during air travel: A concern?
Swelling of the leg or foot while flying is common and usually harmless.
Gallbladder polyps: Can they be cancerous?
The size of gallbladder polyps can be a useful predictor of whether they're cancerous.
HER2-positive breast cancer: What is it?
HER2-positive breast cancer tends to be more aggressive than other types of breast cancer. Treatments that target HER2 are very effective.
Heart cancer: Is there such a thing?
Although heart tumors do occur, the vast majority of them are noncancerous (benign).
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
High cholesterol in children: How is it treated?
High cholesterol in children can lead to narrowed and hardened arteries, increasing the risk of heart disease later in life.
How to treat a piercing site infection
Learn what you can do at home if your ear new piercing becomes infected.
Hyperinsulinemia: Is it diabetes?
Hyperinsulinemia often is associated with type 2 diabetes.
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