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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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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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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Location of the major baroreceptors. Location of the major baroreceptors.
The appearance of different types of tissues-muscle, epithelial, nervous, connective-and their locat The appearance of different types of tissues-muscle, epithelial, nervous, connective-and their locat
Woman (formerly a.k.a. the Venus of Willendorf), Lower Austria. Woman (formerly a.k.a. the Venus of Willendorf), Lower Austria.
Location of thyroid gland. Location of thyroid gland.
Reflexology chart showing location of reflexes with corresponding anatomical structures and organs ... Reflexology chart showing location of reflexes with corresponding anatomical structures and organs ...
The Lower Extremities The Lower Extremities
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