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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.