Search Results

Air Pollution What is air pollution? Air pollution is when harmful substances are in the air that we breathe. National agencies and organizations report that: Air pollution comes from many sources. Some of these include industrial operations. Other sources are stationary fuel

Molds in the Environment What is mold? A mold is a microscopic fungus that grows and lives on plant or animal matter. It can also live on nonorganic objects. Most molds are made up of filaments. They reproduce through the production of spores. Spores spread by air, water, or

When to Get an Eye Exam What's an eye exam? During an eye exam, an eye healthcare provider looks at your health history and gives you a series of eye tests. The tests are done to check the health of your eyes. They check for problems that can develop over time, such as glaucoma

Anatomy of the Eye Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye. Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye

Overview of Sleep Disorders Facts about sleep disorders Loss of sleep can cause problems at home or on the job. It can lead to serious or even fatal accidents. The National Sleep Foundation notes that: Between 50 and 70 million U.S. adults have some type of sleep or wakefulness

Smoking and Respiratory Diseases Fast facts According to the CDC: More than 16 million Americans are living with a disease caused by smoking. Across the world, tobacco causes more than 7 million deaths per year. Smoking causes cancer, heart disease, stroke, lung diseases

Watching Your Weight Why do you need to watch your weight? According to the CDC, more than 7 in 10 U.S. adults older than age 20 are either overweight or obese. Why is excess weight a concern? It may cause new health problems or worsen ones you already have. Staying at a healthy

Preventing Obesity in Children, Teens, and Adults Facts about obesity Obesity is a long-term (chronic) disease. It affects growing numbers of children, teens, and adults. Obesity rates among children in the U.S. have doubled since 1980. They have tripled for teens. About 19 out

Peutz-Jeghers Syndrome and Cancer Peutz-Jeghers syndrome (PJS) is a rare, inherited condition. It's passed to a child from a parent. PJS is an autosomal dominant genetic disorder. This means you only need 1 copy of the altered (mutated) gene to have PJS. About 3 out of every 4

Allergy Overview What are allergies? Allergies are due to a problem with the body's immune system. Most allergic reactions happen when the immune system reacts to a false alarm. Normally the immune system attacks harmful things, such as viruses or bacteria. But sometimes it