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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?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.