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Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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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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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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

Visual Field Defects Visual Field Defects
A football game, in 1879, pits Yale against Princeton. The field was not lined or bounded, and play A football game, in 1879, pits Yale against Princeton. The field was not lined or bounded, and play
Optical microscopes are commonly configured for bright-field (transmitted), phas Optical microscopes are commonly configured for bright-field (transmitted), phas
Scientists do research in the laboratory and in the field Scientists do research in the laboratory and in the field
Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011 Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011
Kindergarten field trip Kindergarten field trip
Video: Biological organic compounds

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