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Did you know?
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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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.