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Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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The average adult has about 21 square feet of skin.

new species of nudibranch (also known as a sea slug) new species of nudibranch (also known as a sea slug)
A human cuddles a Doberman puppy. A human cuddles a Doberman puppy.
Using a microscope to study the human body Using a microscope to study the human body
Human anatomy and Physiology Human anatomy and Physiology
A colorized image of human chromosomes A colorized image of human chromosomes
Philippine Tarsier (Tarsius syrichta), Philippine Islands, a threatened species. Philippine Tarsier (Tarsius syrichta), Philippine Islands, a threatened species.
Video: Types of Shock (Part 2 of 2)

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