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Did you know?

There are 60,000 miles of blood vessels in every adult human.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev
Helping maintain accurate patient records is a critical part of the medical assistant's work. Helping maintain accurate patient records is a critical part of the medical assistant's work.
This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ... This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ...
This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ... This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ...
In-line blending is the most accurate method for blending ethanol with gasoline because computers ... In-line blending is the most accurate method for blending ethanol with gasoline because computers ...
AC ripple at the output terminal of the battery is more accurate than testing at the battery due ... AC ripple at the output terminal of the battery is more accurate than testing at the battery due ...
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

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