half a inch a month
2007-02-14 02:06:31
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answer #1
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answered by rajan naidu 7
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Hair growth is a cyclic and asynchronous process. Healthy hair undergoes three phases that re-occur in cycles.
In people with healthy hair about 85% of hairs are in the anagen, 1% in the catagen, and 14% in the telogen phases at any given time.
During the anagen or growth phase, the matrix cells divide rapidly and move up the hair bulb where they become cells of the hair sheath and hair shaft, i.e. medulla, cortex and cuticle. The final differentiation of the cells takes place in the keratinizing zone. The process is concluded with the production of Keratin, the main component of the hair shaft, and the complete keratinization of the hair root cells. The anagen phase lasts between three and eight years.
In the catagen or transition phase the division of the hair-forming cells gradually comes to an end. The hair bulb separates from the dermal papilla, and programmed cell death begins. The hair follicle shrinks to one third of its previous length and migrates towards the scalp surface. The catagen phase lasts 2 to 3 weeks.
The hair falls out in the telogen or resting phase, either actively or passively as the newly growing hair pushes out the old. The follicle now moves deeper into the dermis and in the dermal papilla, until now reduced to a ball of cells, another anagen phase of new hair growth begins. The telogen phase lasts two to four months.
2007-02-14 01:54:56
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answer #2
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answered by Anonymous
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On average hair grows about 6 inches a year. However the rate of hair growth varies widely in different people because it depends on so many different factors, for example: age, genetics, nutrition, the standard of hair care, etc.
2007-02-14 01:54:11
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answer #3
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answered by Alex 5
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it depends on the person! The average person grows about 1/2inch a month....But me I'm out of the ordinary, my hair grows 2 inches a month! So it depends on you! You can calculate each month to get an estimate on how fast you hair grows by measuring it monthly. Thats how i found out!
2007-02-14 01:55:30
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answer #4
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answered by Anonymous
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It depends on the person. Some peoples hair grows much faster than others. If you dont want it as long as it is, you can always go to a salon and fix it up!!
2007-02-14 01:57:19
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answer #5
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answered by Claire Mcshort 2
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It grows 1/2 inch per month which = 6 inches per year
2007-02-14 02:59:31
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answer #6
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answered by Anonymous
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The speed that hair grows is dependent on the person, the whole story of trimming makes it grow faster is not true. There are some hair products that help but most of it is vitamin related.
2007-02-14 01:49:39
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answer #7
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answered by whit g 3
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I read somewhere that hair grows on average a 1/2 inch per month. Hope that helps!
2007-02-14 01:49:15
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answer #8
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answered by ? 2
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It should grow only 6 inches a year.
2007-02-14 01:50:17
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answer #9
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answered by charday_bonner 3
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Dif people's hair grows at different rates at changes at diff times of the year. The best thing to do is to measure it now and in a week and see how much it grew.
2007-02-14 01:48:57
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answer #10
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answered by Anonymous
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2-3 inches a year, but it grows faster the more often you cut it
2007-02-14 01:54:20
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answer #11
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answered by breezy 3
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