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Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

A lilac, orange and white Satin Peruvian guinea pig (show-length coat) A lilac, orange and white Satin Peruvian guinea pig (show-length coat)
Two devils, one without any white markings. Around 16% of wild devils have no markings. Two devils, one without any white markings. Around 16% of wild devils have no markings.
White-winged Duck at Sylvan Heights Waterfowl Park, North Carolina White-winged Duck at Sylvan Heights Waterfowl Park, North Carolina
Female scorpion Compsobuthus werneri carrying its young (white) Female scorpion Compsobuthus werneri carrying its young (white)
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Video: Introduction to Photolithography - WC, BLF, PA, Hard and Soft baking

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