Nutrition basics
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Video: Alzheimer's drug shows early promise
A new drug that's being studied in clinical trials may help slow the progression of Alzheimer's disease.
Video: An asthma attack
What happens to your airways during an asthma attack?
Video: Barium enema
See what to expect during an X-ray examination of your colon.
Video: Colonoscopy
See what a doctor sees when you undergo an examination of your colon.
Video: Endoscopy
An endoscopy allows your doctor to view your esophagus, stomach and part of the small intestine. Here's how it works.
Video: Endovenous thermal ablation
Video showing endovenous thermal ablation procedure to treat varicose veins.
Video: HSG test for female infertility
Video animation shows the HSG test — an X-ray study to identify causes of female infertility.
Video: How to use a dry powder disk inhaler
Watch these step-by-step instructions for using a dry powder disk inhaler.
Video: How to use a dry powder tube inhaler
Watch these step-by-step instructions for using a dry powder tube inhaler.
Video: How to use a peak flow meter
Asthma attacks taking you by surprise? Take regular peak flow meter readings, as shown in this video, to predict asthma episodes and better control your condition.
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