1. 35 meters of hair fibre is produced every day on the average adult scalp.
2. Hair is the fastest growing tissue in the body, second only to bone marrow.
3. 90% of scalp hairs are growing and 10% are resting.
4. 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.
5. You must lose over 50% of your scalp hairs before it is apparent to anyone.
6. It is normal to lose 100 hairs per day from the scalp.
7. Thyroid imbalance and iron deficiency are reversible causes for hair loss.
8. Many drugs can cause hair loss.
9. Forty percent of women by the time they reach menopause will have female pattern (hereditary) hair loss.
10. Over 50% of men by age 50 have male pattern hair loss.
