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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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There are 20 feet of blood vessels in each square inch of human skin.
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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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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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
![Many fuel-control oxygen sensors are located in the exhaust manifold near its outlet so that the ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_10_29_33_299392500.png)
![Control of transcription of a flagellar protein operon by a riboswitch for the regulatory nucleotide](https://biology-forums.com/gallery/35/medium_576887_02_11_17_2_34_48.png)