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Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Did you know?
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.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.