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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 senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Centers for disease control and prevention guidelines Centers for disease control and prevention guidelines
(A) Female head louse. (Courtesy of the Centers for Disease Control and Prevention/ Dr. Dennis ... (A) Female head louse. (Courtesy of the Centers for Disease Control and Prevention/ Dr. Dennis ...
A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ... A) Male body louse. (Courtesy of the Centers for Disease Control and Prevention/Frank Collins, Ph.D. ...
Chickenpox rash. (Centers for Disease Control and Prevention [CDC]/Ann Cain) Chickenpox rash. (Centers for Disease Control and Prevention [CDC]/Ann Cain)
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Lobes of the brain, with primary receiving and integrating centers of the human cerebral cortex. Lobes of the brain, with primary receiving and integrating centers of the human cerebral cortex.
Video: Phlebotomy

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