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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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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Medication errors are three times higher among children and infants than with adults.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.