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Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.