Did you know?
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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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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There are more sensory neurons in the tongue than in any other part of the body.
Some organisms used as models in genetic research
Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe
Young adults increase in self-esteem between the ages of 18 and 25, according to this longitudinal s
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