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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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Your heart beats over 36 million times a year.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.