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Learn how metatarsalgia, pain in the ball of your foot, is treated.

Arthroscopy is used to find and treat ankle problems. These include loose bodies, bone spurs, osteochondritis dissecans (OCD), and synovitis.

After ankle arthroscopy, your joint may be swollen, painful, and stiff. Recovery times can vary. Your surgeon will tell you when to resume activity.

Narcolepsy is a sleep disorder that affects how your brain controls your sleep-wake cycles. The main symptom is being very sleepy during the day.

Narcolepsy is a serious sleep disorder. Find out about treatment and how to live with this condition.

Most moles are not cancer and are harmless. But some do become cancer. That's why you need to check the moles on your body.

A helpful, step-by-step guide to doing a monthly skin check and tracking any changes in your moles.

Learn about foods that can raise your cholesterol and foods that can help you lower it.

The middle ear is an air-filled chamber that lies behind the eardrum. Pressure in the middle ear changes to match air pressure outside of the eardrum. When inside and outside pressures are balanced, the eardrum is flexible and normal hearing is more likely. Problems happen when air pressure in the middle ear drops. This is often due to a block in the eustachian (u-STA-shun) tube, the narrow channel connecting the ear with the back of the throat.