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What does your hair say about you?
(Agencies)
Updated: 2004-05-27 08:38
Hair speaks volumes about an individual, revealing ethnic origin,
environment, diet and even lifestyle, scientists said Wednesday.
 Although like fingernails and toenails the hair itself is dead, it acts
like an Arctic ice core, trapping within its physical and chemical structure an
accurate record of whatever has been ingested or applied to it externally.
"Your hair tells what you eat, where you live, your lifestyle and habits,"
said Emma Freeman from London's Natural History Museum. "Your hair is what you
do."
It can tell if you smoke, drink or take drugs and, growing at 0.3 to 0.5
millimeters a day, it keeps a record for months if not years -- which is why
some people taking illegal substances shave their heads.
Because different races have different hair structures, analysis can also
tell ethnic origin. But it cannot reveal sex.
Starting Saturday and running through September the museum is opening to the
public an exhibition detailing the story of hair.
"This tells the incredible biology of hair and the place of hair in different
cultures," Freeman said.
The average person has up to 150,000 hairs on the head and a single strand
can support 3.5 ounces in weight.
A whole head of hair could in theory support the weight of two African
elephants.
African hair grows more slowly and is more fragile than European hair, but
Asian hair grows the fastest and has the greatest elasticity.
Asian people also are ahead when it comes to keeping their hair, with
Africans and Europeans more prone to balding.
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