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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
Did you know?
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.