Nutrition basics
Learning Center
Amputation and diabetes: How to protect your feet
Find out who's at risk and what you can do to protect your feet from diabetes complications.
Aortic calcification: An early sign of heart valve problems?
Aortic valve calcification — once thought a harmless condition — may be a sign of heart valve disease.
Arcus senilis: A sign of high cholesterol?
With this condition, older adults develop a gray arc around the cornea of the eyes.
Are energy drinks bull?
Thanks to a large amount of sugar and caffeine, energy drinks might give you a temporary energy boost. But too much sugar from energy drinks can add extra pounds. And too much caffeine can cause adverse side effects, such as nervousness, stomach upset, irritability, increased heart rate and insomnia. There are better ways to boost your energy. For example, get enough sleep, exercise regularly and eat a healthy diet.
Artificial sweeteners and other sugar substitutes
Get the facts on products that make food and drinks sweeter.
Auditory processing disorder (APD)
This type of hearing loss involves the brain. Learn about ways that can help people with the condition hear better.
Avulsion fracture: How is it treated?
Surgery is rarely needed to reattach a small chunk of bone when it gets pulled away from the main part of the bone by a tendon or ligament.
Axona: Medical food to treat Alzheimer's
Axona — Can a supplement treat Alzheimer's disease?
Bacterial vs. viral infections: How do they differ?
Understand the differences between bacterial and viral infections.
Balance exercises
Balance exercises can improve your balance and help prevent falls. See how they're done.
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