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Did you know?
Your heart beats over 36 million times a year.
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The average adult has about 21 square feet of skin.
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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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Blood is approximately twice as thick as water because of the cells and other components found in it.