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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.