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Monday 18 May 2015

Hair

The average person's scalp  has between 100,000 and 150,000 strands of hair  (the entire adult body has 5 million)

Hair on our heads grows at a rate of 1cm a month. Beards grow slightly faster.

The average person grows around ten miles of hair a year.

Asian hair grows 30% faster than Caucasian hair, while people from Africa tend to have hair that grows slower.

While many people believe your hair and nails will continue to grow after your death, what actually happens is your skin shrinks.

Body hair doesn't stop growing at a certain length; it just lives a shorter life and falls out before the hair on your head.

Hair on the head grows for between 2-6 years before being replaced. In the case of baldness, the dormant hair is not replaced with new hair.


An estimated one-third of African-American women suffer from traction alopecia, hair loss caused by prolonged tension on the hair root.

Curly hair actually tangles less than straight hair, because straight hairs bump into each other at steeper angles.

A tangled strand of hair is called an elflock.

Ulotrichous is the word for having woolly or crisply curly hair.

Intelligent people have more zinc and copper in their hair.

One head of human hair could support the weight of two elephants.

When healthy hair is wet, it can stretch up to 30 per cent longer.

Smoker's hair tends to go grey faster than that of non-smokers.

You could fit 25,000 strands of DNA side by side into the width of a single human hair.

Mary Babnik Brown donated her 34" untreated hair to the United States military during World War II after they determined that blonde hair that had never been treated or exposed to heat was the most resilient material to use as the crosshairs in bomb sights.

A lock of Elvis Presley's hair was sold at an auction for $115,000 in 2002.

In the film Monsters, Inc. the big blue monster Sully had 2,320,413 individually animated hairs.

The Guinness world record for the longest head hair belongs to a Chinese woman named Xie Qiuping, who stopped cutting her hair in 1973 and by 2004 it measured a huge 5.627 metres.

Weighing 307lb, the world’s largest fur ball was made from hair collected at a dog walk in Austin, Texas, in April 2015.

Human hair was effectively used to fight the oil spill in Mauritius in July 2020 because it repels water and can collect heavy metals and other contaminants, such as oil. 

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