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Did you know?

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

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Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

The work of Charles Darwin forms the foundation for modern evolutionary theory. The work of Charles Darwin forms the foundation for modern evolutionary theory.
Decapods, from Ernst Haeckel's 1904 work Kunstformen der Natur Decapods, from Ernst Haeckel's 1904 work Kunstformen der Natur
The homeostatic control of normal body temperature (37°C or 98.6°F). The homeostatic control of normal body temperature (37°C or 98.6°F).
Apply direct pressure along upper trapezius, turning the head to access the area. Use your thumb to ... Apply direct pressure along upper trapezius, turning the head to access the area. Use your thumb to ...
Breast-Feeding at Work Can Work Breast-Feeding at Work Can Work
Where do Psychological Practitioners Work? Where do Psychological Practitioners Work?
Video: Protein Secondary and Tertiary Structures - Animation

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