1. Your hair only grows 0.3 to 0.5 millimeters each day, so this means that it can keep this life diary for a long time – for months or even years.
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. 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 to have your hair trimmed at least every six weeks to maintain healthy end.
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