Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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Vaccines prevent between 2.5 and 4 million deaths every year.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

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