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

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Blood PH Blood PH
Blood Vessels Blood Vessels
Cardiac Blood Flow Cardiac Blood Flow
Desmosomes and gap junctions, as shown in heart muscle: Gap junctions Desmosomes and gap junctions, as shown in heart muscle: Gap junctions
Men who are at risk for heart disease and report work-related stressors are at greater risk of death ... Men who are at risk for heart disease and report work-related stressors are at greater risk of death ...
Bypass surgery of coronary blocked arteries. Bypass surgery of coronary blocked arteries.
Video: Evolutionary tree of life Animation

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