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Hair loss

life science Maturity 11-13 Next article →

Most people have many hairs on their head. We have between 100,000 and 150,000 hairs. It is normal to lose about 100 hairs every day.

Andre Agassi (2011)
Andre Agassi (2011)

But sometimes, hair loss happens in different ways. This is often called alopecia.

Some hair loss comes from our genes. This means it runs in families. Male-pattern hair loss is common. It is caused by genes and male hormones.

Uudenvuodenpuhe 1959
Uudenvuodenpuhe 1959

Women can also have hair thinning, but the cause is not clear.

Other types of hair loss happen for different reasons. Alopecia areata is an autoimmune disorder. This is when the body's own defense system attacks the hair. It can leave round, bald spots.

Roshi with group of nuns
Roshi with group of nuns

Another type is telogen effluvium. This happens after a very stressful event. It can also happen after a woman has a baby.

Sometimes, hair loss is caused by things outside the body. Pulling on hair too hard can cause it. Certain medicines can also make hair fall out. Some people choose to shave their heads to help them feel better.

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File:Andre Agassi (2011).jpg
Andre Agassi (2011).jpg
File:Uudenvuodenpuhe 1959.jpg
Uudenvuodenpuhe 1959.jpg
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Syngman Rhee and Douglas MacArthur.jpg
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Petróleo Químico Nally - Ilustração...
File:Roshi with group of nuns.jpg
Roshi with group of nuns.jpg
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