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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
![(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_38_22_1978811.jpeg)
![Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa](https://biology-forums.com/gallery/47/medium_14755_01_10_12_7_58_03_9212184.jpeg)