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# How many strands of hair does the human body manufacture during the course of a lifetime?

Question #23510. Asked by kramerkitti. (Oct 23 02 12:45 PM)

fpgjc

The average head has about 100,000 hairs at any one time which last from 2-7 years therefore the average number per lifetime assuming 3 score years and ten would be between 1 - 2 million

http://library.thinkquest.org/26829/3-hairy-summary_e.htm?tqskip1=1 and tqtime=1023

 Oct 23 02, 1:53 PM
Kainantu

The human head has from 100,000 to 150,000 hairs.
The average life span of a strand of hair is 5 to 6 years.
http://www.hairus.com/echem.html

In 6 years time at age 6 all of the hair on one's head has been replaced.
Meaning that the head has grown another 100,00 to 150,00 hairs by age 6
At age 12 yet another 100,000 to 150,000 has been replaced
and at age 18 another 100,000 to 150,000 has been replaced
etc etc etc

If one lives to 60 (10x6)
then that is 10 times 100,000 to 10 times 150,000

Meaning that at age 60
one has grown between 1,000,000 to 1,500,000 hairs on one's head
Give or take one or two or even three.
Perhaps four or even five.............

 Oct 23 02, 1:59 PM
Gnomon

But the average person has hairs all over their body, not just on their head. These hairs are usually very fine and virtually invisible, but they would still count! So those estimates are way too low.

 Oct 24 02, 7:14 AM
Friar Tuck

If there are 100,000 to 150,000 hairs on your head, who has walked off with 75,000 to 125,000 of mine then. The only 'good' thing about it is, that because of it, I now look like my alias.

 Oct 24 02, 7:29 AM

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