1. Your hair only grows 0.3 to 0.5 millimeters each day.
2. The person on the average has up to 100,000 to 150,000 hair strands on his or her head.
3. A single hair strand can support up to 100 grams in weight. This literally means that your whole head can actually support the weight of two elephants.
4. African hair grows slower and is more prone to damage as compared with the Europeans.
5. Asian hair has greater elasticity and grows faster as compared to other races.
6. Your gender is one thing about you that cannot be revealed by your hair strand.
7. The core structure of the human hair shaft can be used for forensic drug testing and anonymous drug test for any presence of illicit drug metabolites. Hence, your single hair can already provide substantial information in an investigation.
8. Human hair grows faster in warm weather because it stimulates hair growth.
9. Trimming your hair does not actually influence hair growth.
10. Hair root is indeed alive but it is located below the epidermis while the hair that appears above the epidermis is only made from dead cells.
11. Hair acts as a thermal protection while our head lacks the thermal insulation fats layers.
12. The approximate number of hairs from a scalp varies between 120,000 and 150,000.
13. One cm3 weights 1.3 grams.
14. We wear daily on our scalps between 5 to 200 grams of hair, depending on hair length.
15. Hair grows with about 1 cm every month.
16. Every day we loose between 50 to 100 hairs, more or less.
17. In Europe, most people wash their hair three times a week while a quarter of the population washes their hair daily.
18. 80% of North Americans and 90% of Japanese people wash their hair two times a day.
19. Once a hair has been plucked another one starts growing.
20. Each hair follicle is completely independent of its neighbors.
21. Asian people hair holds two records: growth rate – 1.3 cm/month and it has the lowest density
22. African hair growth rate is the lowest – 0.9 cm/month but has the higher density per square cm.
23. A single hair can support weights up to 100 grams. If you would knit a rope of 100 hairs, you could carry a weight up to 10 kg. Moreover, if the scalp would be strong enough, a person’s hair could sustain up to 12 tons!
24. In terms of structure and growth cycle, women’s hair is identical to men’s hair.
25. Less than 4% of the world’s population has natural red hair.
26. Hair is very elastic. When it is wet, it can stretch in length by 30% without any damage. However, the elasticity degree is lower in black curly hair and higher in lighter colors.
27. 90% of your hairs are constantly growing, a hair having a lifespan of about five years.
28. Blond hair people usually have more hairs than people with red or dark colored hair.
29. Cutting your hair does not affect in any way the rate of hair growth, nor its texture.
30. Next to bone marrow, hair is the fastest growing tissue in the human body. So don’t be surprised if you will be advised by hair experts like hair stylist Las Vegasto have your hair trimmed at least every six weeks to maintain healthy end.