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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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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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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.