Here are some hairy trivias I’ve found on the net:
Average number of hairs on the human head head: 100,000
- Red hair: 90,000
- Black hair: 110,000
- Blond hair: 140,000
Hair Growth
- Annual growth: 12 cm
- Female hair grows more slowly than male hair
Hairy Statistics:
- Lifespan of hair: 2 to 7 years
- Diameter of hair: 0.1 mm
- Load-carrying capacity: 100 grams
- 35 meters of hair fibre is produced every day on the average adult scalp.
- 90% of scalp hairs are growing and 10% are resting.
- It is normal to lose 100 hairs per day from the scalp.
- You must lose over 50% of your scalp hairs before it is apparent to anyone.
- Over 50% of men by age 50 have male pattern hair loss.
- 40% of women by the time they reach menopause will have female pattern (hereditary) hair loss.
Other hairy Facts
- Many drugs can cause hair loss.
- Thyroid imbalance and iron deficiency are reversible causes for hair loss.
- Humidity stretches the hair
- Combing is less detrimental than brushing
- Correct shampooing will not dry out the hair
- Frequent washing does not increase loss of hair
- Hair grows faster in warm weather
- Elderly people have slower hair growth and diminished hair density
- Cutting hair does not influence its growth
- Hair is the fastest growing tissue in the body, second only to bone marrow.
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