Facts about Hair
                                       
                            
  • The characteristics of hair i.e. type, texture, curliness and colour are inherited.
  • Humans have hair on almost every part of their bodies, except on the palms of the hands, soles of the feet, and lips.
  • Hair is roughly made up of 97% protein and 3% water.
  • Each hair is comprised of 3 layers i) the inner core (medulla), which is soft and spongy, ii) the cortex is comprised of long thin fibrous cells that give hair it's elasticity. It also contains the pigments that give hair it's colour and iii) the cuticle is the outer layer, comprised of overlapping scales of karatin, that protects the hair shaft.
  • Hair grows at approximately 1 cm per month. It is the fastest growing tissue in the body, second only to bone marrow.  Hair grows at a faster rate: i) in spring and summer,  ii) during the day and iii) in women.
  • 35 meters of hair fibre is produced every day on the average adult scalp.  
  • The average scalp has 100,000 hairs. Redheads have the least at 80,000; brown and black haired persons have about 100,000; and blondes have the most at 120,000.
  • At any one time, 90% of scalp hairs are growing and 10% are resting.
  • It is normal to lose 100 hairs per day from the scalp.
  • Each follicle can produce about 20 hairs in a lifetime.Each new hair grows for several years, and can reach over a metre in length.
  • You must lose over 50% of your scalp hairs before it is apparent to anyone.
  • Thyroid imbalance and iron deficiency are reversible causes for hair loss.
  • Over 50% of men by age 50 have male pattern hair loss.
  • Forty percent of women by the time they reach menopause will have female pattern (hereditary) hair loss.
  • Hair is dead.