Fitness basics
Learning Center
MRSA infection
MRSA infections often occur in health care settings, but they can happen anywhere. Find out about symptoms and treatment for this virulent staph infection.
Sick sinus syndrome
This heart rhythm disorder causes slow, paused or irregular heartbeats. Learn the symptoms and how it's treated.
Dermatomyositis
Muscle weakness and a skin rash are hallmarks of dermatomyositis. There's no cure, but treatments can relieve symptoms.
Primary immunodeficiency
Frequent infections could mean you have an immune system disorder. The conditions in this category are usually caused by genetic changes.
Childhood obesity
Childhood obesity can lead to various conditions, including type 2 diabetes and high blood pressure. Learn how to protect your child's health.
Pediatric cervical spine surgery
This surgery can treat injuries and conditions that are present at birth and that affect the neck area of the spine.
Allergies
Allergy symptoms can range from mild to severe, even life-threatening. Most allergies can't be cured, but treatments can help.
Puberty blockers for transgender and gender-diverse youth
Understand how puberty blockers work to suppress puberty. Learn about their benefits, side effects and long-term effects.
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.
Body lice
Body lice are tiny insects that live in your clothing and feed on your blood. Find out how to treat and prevent this itchy nuisance of a bug.
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