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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.