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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.