Hair shafts and their bulbs/follicles store former metabolic and nutritional data, which reveals sensory
bio-information. Hair can be found on all Of the major visible surfaces Of the body. It is also the only body
structure that is completely renewable without scarring.

The ectoderm is the extreme outer layer Of the neural tube, which forms at the end Of the 4th week Of
gestation. This develops the hair as well as the rest of integumentary system, which comprises the skin, the
nails, the teeth along with the nervous system comprising the brain, the spinal cord and nerves. A
developing fetus has all Of its hair follicles created by the 22nd week Of pregnancy. At this time, there are at
least 5 million follicles over the body; one million of these are on the head, this will be the largest number
Of follicles we will ever have, as follicles cannot be added later in life. When we grow Older, the size Of the
body increases and the density Of hair follicles on the skin decreases.