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Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

Free Energy Enzymes Free Energy Enzymes
Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J Age and Grammatical Knowledge The challenge of learning a second language rises with age. Source: J
National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ... National Institute on Aging Web site is designed to be easy to use by older adults. It utilizes ...
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