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What happens during obstructive sleep apnea?

Sleep apnea -- Watch this video to see how snoring and obstructive sleep apnea occur.


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Cornea transplant

Video shows how full-thickness and partial-thickness cornea transplants are performed.

Epinephrine and exercise

This animation shows the release of epinephrine and its effect of the heart.

Are Generic Drugs Just As Safe As Brand Name Drugs?

A brief overview of generic and brand name drugs, how they differ, and what precautions you might need to take with some generic drugs.

Liposuction

A vibrating suction cannula, or flexible tube, is used in a liposuction procedure. The cannula is inserted through a small hole into the abdominal fat tissue to remove excess fat deposits.

Chest press with dumbbell

The chest press with dumbbell exercise targets the chest muscles. See how it's done.

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