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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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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.

Bones of the appendicular skeleton. Bones of the appendicular skeleton.
Control of Components of REM Sleep by the REM-ON Region Control of Components of REM Sleep by the REM-ON Region
Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ... Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ...
Apply effleurage with wave motion to posterior cervical region. Use fingertips to slide along ... Apply effleurage with wave motion to posterior cervical region. Use fingertips to slide along ...
Bones of the human skeleton Bones of the human skeleton
The lacO region O1 containing an inverted repeat sequence The lacO region O1 containing an inverted repeat sequence
Video: Introduction to Heart Attacks

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