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Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

This 11-month old girl demonstrates one of the abilites of a child of this age group - creating a to This 11-month old girl demonstrates one of the abilites of a child of this age group - creating a to
The heme group viewed from the side. This view shows the two coordination bonds to Fe2+ The heme group viewed from the side. This view shows the two coordination bonds to Fe2+
Jupiter and Its Largest Moons Jupiter and Its Largest Moons
Midway Island, an inhospitable atoll acquired in 1867, was valuable as a military base located midwa Midway Island, an inhospitable atoll acquired in 1867, was valuable as a military base located midwa
Structures of the lymphatic pathway from smallest to largest. Structures of the lymphatic pathway from smallest to largest.
Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule Deoxynucleotides (top) have an OH group at the position in the deoxyribose molecule
Video: Stroke volume - afterload definition & hypertension

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