The Hair's Properties

Question 1  
The hair grows more than one centimetre per month.

Question 2
The head’s longest hair measures 3.55 m.

Question 3  
A healthy hair’s life is longer in women than in a man.

Question 4
The hair follicles are the white part that surround the root of a fallen hair.

Question 5
A hair that falls with its root does not grow back.

Question 6
A normal head of hair has about 100,000 hairs.

Question 7
For as long as it hasn’t fallen, all of the hair on our head keeps growing.

Question 8
Beyond 30 hairs a day, a hair loss must be considered to be abnormal.

Question 9
Cutting the hair makes it more vigorous.

Question 10
Keratin is the hair’s main composant.

Question 11
By nature, the hair is thinner on the front of the head.

Question 12
The hair’s colour is determined by the same pigment
as the skin’s.