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Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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The horizontal fraction bar was introduced by the Arabs.

Auscultation. The stethoscope is pressed against the body wall to listen for sound waves associated Auscultation. The stethoscope is pressed against the body wall to listen for sound waves associated
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Children can fast map the meanings of words in a single exposure. Children can fast map the meanings of words in a single exposure.
Nasal Decongestants Nasal Decongestants
Using the nasal speculum Using the nasal speculum
Video: Mendel's pea plant, Pisum sativum experimental

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