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"you are born with over 16trillion brain cells."

Another answer that appears to be wildly off the mark. Amazing what a huge variation I'm finding on this one.

The consensus seems to be around the 100 billion mark:

Glencoe Health 2nd Edition. Mission Hills: Glencoe Inc., 1989: 252."Weighing around three pounds (1.35kg), the brain contains nearly 100 billion cells."100 billionWorld Book 2001. Chicago: World Book Inc., 2001: 551."The human brain has from 10 billion to 100 billion neurons."10-100 billionMagill's Medical Guide Revised Edition. Salem Press, 1998: 221."It has been estimated that the adult brain has around one hundred billion neurons and an even larger number of glial cells."100 billionThe Science Times Book of the brain. New York: The Lyons Press, 1987: 150."The human brain holds about 100 billion nerve cells."100 billionThe Scientific American Book of the Brain. New York: Scientific American, 1999: 3."An adult human brain has more than 100 billion neurons"> 100 billion

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โˆ™ 2010-12-22 23:01:04
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Q: How many brain cells are humans born with?
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