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Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

A comparison between chromosomes found in a normal human cell and a cancer cell from the same person A comparison between chromosomes found in a normal human cell and a cancer cell from the same person
A very high-resolution texture of the Moon, including a normal map A very high-resolution texture of the Moon, including a normal map
Normal glomerulus. Acute glomerulonephritis. Normal glomerulus. Acute glomerulonephritis.
Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti Retinopathy. Illustration of a normal retina (left) and a diseased retina (right). The diseased reti
Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix
(A) Tetralogy of Fallot; (B) normal anatomy. (A) Tetralogy of Fallot; (B) normal anatomy.
Video: Simple Diffusion - gases and nonpolar compounds transport

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