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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

Here are images of live zebrafish that were studied for genetics and head size to give insight into Here are images of live zebrafish that were studied for genetics and head size to give insight into
Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a
Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how Emphysema. (a) Illustration comparing normal lungs and emphysemic lungs. The inserts illustrate how
Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
Organization of the Cerebral Cortex Organization of the Cerebral Cortex
Video: Chronology of leptin research (A history of leptin research)

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