Does cold(goose bumps) make the hair on your legs grow faster?
493847
Yup! The hair is trying to make your legs warmer, I guess.
461420
Because your hair grows faster when you cut it.
181756
Goosebumps are actually when the erector pili muscles contract. If you get chilled, you could sneeze and get goose bumps.
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.
1154161
When you are cold, your blood goes to your body's core, away from the extremities.  Once you hit a warm shower, your body dumps blood back to your extremities when they're still cold.  This causes a drop in your body's core temperature, causing you to shiver.  This is experienced by Arctic/antarctic swimmers.  Once they get out of the water and into a warm bath or shower, their core temperature drops because their blood is running through relatively cool arms & legs.
662962
Goosebumps go away after you body warms up. If yours haven't gone away, then it's time for a visit to the doctor!
68263
Interestingly enough, when you cut pubic hair, arm or armpit hair or shave legs, the hair grows back to exactly the same length as it was before!\n\nHair follicles in those areas are programmed and have on and off activation.
488787
Hair will freeze at 0 grades Kelvin.\nAnd at the second question it's yes.
114746
If anything, the warmth would probably stimulate hair growth. Heat causes increased blood flow, which would be good for your hair folicles. Of course you could go too far and use scalding water, I'm sure you would lose your hair then! Probably your sanity too!
308433
Spring or fall  - If its in the summer, you might have tan lines and in the winter the extra cold is kind of a shock (you lose a lot of heat through your head with out the hair there)\n\n---In response to the person below - it can actually heat you more in the summer.  With the sun beating down on you without at least a little hair there, your head will actually heat more.
287825
No.  It might give you goofy looking hair the next morning.  At worst, if your house is really cold, wet hair could lower your resistance and cause you to catch something like a cold.
309124
hairs are to keep you warm. You lose a high percentage of heat from the top of your head, thereby you have lots of hair to cover it. Hairs on legs stand up to help when your cold. Unfortunatly hair on my head needs gel
1138070
Why don抰 people get goose bumps on their face?\n\nGoose bumps are caused by little muscles in the skin called erector pilae. \nEach of these muscles is attached to a hair follicle. So, when the muscle \ncontracts, the hair stands up straight. In many animals this provides \nextra insulation by trapping air between the hairs, or makes the animals \nlook slightly larger by causing all its hairs to stand out (which can be \nuseful when the animal is threatened and wants to make itself look as big \nand mean as possible). In humans the same phenomenon is going on, except \nthat our hair is not thick enough to make a real difference for insulation \nor for threats. Still, the erector pilae involuntarily contract when we \nare cold or frightened and give us goose bumps.\n\nThere are, however, several parts of the body where the skin does not \npossess erector pilae muscles. These are usually areas where the skin is \nserving other functions, such as the grasping function of the palms. In \nthe face, we still have erector pilae like muscles, except that they have \ngrown much larger. Collectively, these muscles are known as the muscles of \nfacial expression. In most animals, their main job it to aid in chewing \nand keeping the mouth closed. They still serve these functions in humans, \nbut they also allow us to smile, frown and make a number of other faces to \nconvey emotion. So, we don抰 get goose bumps on our face because the skin \nmuscles have other, more important, functions in that area.
238431
no its the other way around\nnotce that when its cold ur viens get smaller\nand when its hot ur viens get bigger\nand when ur drunk how u feel warm its the blood closer to the skin\nso warm = bigger\ncold = smaller
898335
It depends on how big the area is. \nA small area may be an ingrown hair, a pimple, blocked sweat gland or even an insect bite.\nA bigger area, may indicate nerve hypersensitivity, subcutaneous bruising or tissue damage.\n\nThink back to when it started to happen and anything you did differently that day, or how you felt health wise. Some people find their skin is extra sensitive to touch, hot or cold when they are about to come down with a cold.
35217
Just like insulation in homes, and your mom telling you to wear layers, hollow hairs trap air which holds in heat better.  The animals with the hollow hairs will be found in cold climates.
447774
To help the body in homeostasis of body temperature!Also will stand on end when frightened like a cat but due to evolving to have less hair you just get goosepimples!\n\nWe probably evolved to have less hair due to our ability to produce clothing!Possibly still have head hair as we either didnt produce hats, or it conferred some advantage such as preventing heatstroke(by protecting the back of the neck and forehead)or sexual selection.