The familiar sounds of your heart are made by the heart's valves as they open and close.
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There are approximately 3 million unintended pregnancies in the United States each year.
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There are more bacteria in your mouth than there are people in the world.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
A diversity of species live within the soils, the ecology of which remains to be explored.
A propaganda poster enshrining Stalin proclaims that he has led his people “Forward to ...
Approximately 40 percent of farmers in the United States are 55 years old or older
People with Huntington disease develop problems with neuromuscular control and gradually lose the us