When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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2 out of 3 adults in the United States have hemorrhoids.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Your body is creating and killing about 2.4 million red blood cells per second.
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The human brain is more active during sleep than during the day.
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