Why do certain hair of your body grow unlimitedly (eg. in your head) and others limitedly (eg. in your arms)?
79162
They all have limits it's just that some are longer then others and it depends on the person. Some peoples hair will grow longer then others.
470182
why do you want to do that?  Hair is a good part of everybody.  Hair accentuates your personality.  Hair is a way of expressing yourself.  Don't permanently remove it please don't do it.
1072792
is it BIOLOGICALLY impossible for your hair to grow back thicker - it is just an illusions as it pokes thru the skin.\n\nI shave b/c I like to feel CLEAN!  pubic hair actually makes you unclean as it holds in sweat, bateria, and other unwanted things that could make you smell and grow things you don't want.  seriously!
319853
Some hairs are equipped with tiny muscles that can make them "stand on end" for example when a dog suddenly barks right behind you.  You get goose bumps when these muscles act together too erect hairs are too small to easily see like on your arm or leg.  Tiny hairs on the face must not be very muscular.
448219
General consensus on this question is that all sensitive areas that require protection from the cold typically grow hair.  The more the body loses heat from that area, the more hair there is.  (Which is why you have a full head of hair!)
928836
humans are born with hair. it may be miniscule, or ridiculously fine, but its definitely there. by hair, we don't just mean on the top of the head, hair can be anywhere on the body, including the fine hairs on your arms and stuff.\nthe most hairless mammal i can think of is a whale; they only have hair on their lips.
253485
I think it all depends on the person. Some people grow hair over night literally. I think mine takes awhile to grow. But people who know me and see me daily tall me my hair grows fast. In the winter I let my hair grow as well as growing a full beard. During the summer I shave my head and face. I do keep a van dyke. Either way I find that I need to sahve every other day. As far as length I can;t really tell ya that. But it does grow quick enough
338040
Hair follicles have a dormancy cycle, productivity rate and life expectancy.\n\nEach follicle's nature is determined by genetic makeup. Chemicals can also affect these, as estrogen tends to suppress facial follicles' productivity for example. \n\nBody hair generally goes into dormancy more often than head hair. When the follicle goes dormant, it temporarily stops growing hair, and the hair falls out. Body hair also has lower productivity than head hair.\n\nThat is why body hair is shorter than head hair. It grows a bit slower and falls out sooner.\n\nAlso genetically programmed is the ability of a follicle to come out of dormancy. So people who go bald have follicles that have gradually come less and less out of dormancy (peach fuzz) until they stop working entirely. Because this is genetic to the follicle, a follicle not programmed to 'die off' transplanted from an other area on the head to the bald area will continue to function, just as programmed.
751454
sweetii, u have hair all over ur body...just not on the bottom of ur feet or ur palms.
953041
now you know why, when someone come up with a goofy idea about doing something stupid, that is called a "hair brain idea"....LOL..........NO it is NOT  possible  for the hair on your head to grow into your brain......
1116738
It is a hairy mole, genetically programed to grow hair.  Your back, on the other hand, is apparently NOT programmed in that manner due to your specific heritage.
1071794
No, you're hair isn't growing, but it is pulling away from the follicle, putting more of the hair on the outside making it seem as if your hair grew.
74405
The more heat, the faster hair grows.  If you pay attention carefully in the summer, you hair grows quicker; this is because of the temperature.  Sure vitamins may help some, but temperature is the biggest factor.
393736
hair, because hair does not live once out of the follicle.
80428
Body hair is governed by your genes. There are things you can do to remove it, or to lighten it, but you cannot do anything about its growth rate. There are some products out in the market that is suppose to retard hair growth, but I don't know how effective they are.
380750
yes, it is a natural reaction. your body is trying to keep you warm by making your hair grow. it is just like when the hair on your arms stand up when you are cold. It drives me crazy because I get cold easily and I have to shave like a million times a day.
383434
This is a common misconception.\n\nNails, hair etc do NOT continue to grow after death - it is merely the illusion of your skin contracting around the follicles etc that makes it appear so.