Stress basics
Learning Center
Chronic stress puts your health at risk
Your body's stress reaction was meant to protect you. But when it's always on alert, your health can pay the price.
Claudication
Too little blood flow to the legs and arms can cause pain, especially during exercise. Learn more about diagnosing and treating intermittent claudication.
Cochlear implants
This electronic device improves hearing in people who have severe hearing loss from inner ear damage.
Colon cancer screening: At what age can you stop?
Some groups recommend people over 75 may consider stopping colon cancer screening. Not everyone agrees. Learn about your colon cancer screening options.
Colon polyps
Have you had your colonoscopy? Colon polyps typically don't cause symptoms, so it's important to have regular screenings.
Constipation
Learn how to prevent and treat infrequent or painful passing of stool.
Coronary angioplasty and stents
Coronary angioplasty and stents can open clogged blood vessels that deliver blood to heart muscles.
Coronary artery bypass surgery
This major heart surgery, also called CABG, creates a new route for blood to flow around a blocked artery. Learn why it's done and know the steps to take during recovery.
Coronary artery disease
Know the warning signs of this common heart condition often caused by clogged, narrowed arteries and how lifestyle changes can lower your risk.
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
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