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Asthma and Colds

When you have asthma, any upper respiratory infection -- like a cold or the flu -- can affect your lungs, causing inflammation and airway narrowing...

Immune System Busters & Boosters

Both of those are good for your immune system. Other foods particularly good for your immune system include fresh garlic, which may help fight viru...

Picture of The Ear

Sound causes the eardrum and its tiny attached bones in the middle portion of the ear to vibrate, and the vibrations are conducted to the nearby co...

Understanding Sore Throat -- The Basics

Everyone knows what a sore throat feels like.

Bird Flu FAQ

In the 2014 outbreak, some people caught H5N1 from cleaning or plucking infected birds. It's also possible that some people were infected after swi...

Understanding Ear Infections -- The Basics

The middle ear is a small space behind the ear drum that is supposed to be well ventilated by air that normally passes up from behind the nose, thr...

Why Do I Get Motion Sickness?

This system includes three pairs of semicircular canals and two sacs, called the saccule and the utricle. They tell the brain whether you’re standi...

Heart Disease and Colds

While there's no vaccine against the cold, there are immunizations that can help prevent other risky infections, like pneumonia and the flu. If you...