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Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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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.

Mechanoreceptors in the lateral line system that detect changes in water movement. Mechanoreceptors in the lateral line system that detect changes in water movement.
Line analysis of Gustave Caillebotte, Place de l'Europe on a Rainy Day. Line analysis of Gustave Caillebotte, Place de l'Europe on a Rainy Day.
A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ... A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ...
Fuel should be heard returning to the fuel tank at the fuel return line if the fuel pump and ... Fuel should be heard returning to the fuel tank at the fuel return line if the fuel pump and ...
The Meselson–Weigle experiment The Meselson–Weigle experiment
Monkey Experiment: Sense of Fairness Monkey Experiment: Sense of Fairness
Video: Helper T cell receptors, activation, proliferation, differentiation & action

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