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Here are images that show the steps of using a dry-powder diskus inhaler.

Here are images that show the steps of using a dry-powder twist inhaler.

Eating healthy for your heart doesn't have to be hard or boring. You just need to know how to make healthier choices. That means eating mostly foods that are low in fat and high in fiber.

This test measures the amount of carbon dioxide in your blood. Normally, carbon dioxide in your bloodstream causes no problems, but if you have far too much or too little of it, you may have a disease or a medical emergency.

Find out how much you know about asthma basics with this quiz.

2019 Novel Coronavirus (2019-nCoV), also known as COVID-19, is a virus that causes a respiratory illness. Coronaviruses are a very common cause of bronchitis. They may sometimes cause lung infection (pneumonia).

Learn about how to care for yourself when you have sickle cell anemia, from lifestyle changes to preventive care.

The only safe sex is no sex, most doctors say. But certain precautions and safe behaviors can reduce a person's risk of contracting a sexually transmitted disease.

When you have diabetes, you are at greater risk for periodontal disease. This disease is an infection of the gums and tissues supporting the teeth. Any periodontal disease you may develop can be more severe and harder to control. Preventing or controlling periodontal disease needs ongoing care.