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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.

Diagnosing a middle ear problem takes several steps. You may be asked questions about your child's health history. Your child's eardrums will be examined. Tests may also be done. Read on to learn what you can expect.

Body mass index (BMI) is a way of telling if you are at a healthy weight. Use the chart to figure out your BMI.

Knowing the truth about losing weight can help you separate what works from what doesn’t. Don’t be taken in by expensive weight-loss fads like pills, herbs, and special foods. There’s no magical way to lose weight.

Most minor strains and sprains can be treated with self-care. But if you have torn tissue or damaged blood vessels, nerves, or bones, be sure to call your healthcare provider.

The more you know about why you smoke, the easier it will be to quit. Read on to find out more.

Here is a schedule of vaccines recommended for adults. It comes from the CDC National Immunization Program.

This list of childhood vaccines and when to give them is based on CDC recommendations.

Getting quality health care doesn’t always mean going into the hospital or emergency room. Depending on your needs, other medical facilities may serve you just as well—or even better.