Does the rate of hair growth change with temperature?

I've hear two contradictory myths that body hair will grow faster when it's cold outside or when it's warm outside. Is either of these valid or are they both just false? Thanks.

Does the rate of hair growth change with temperature?

Hair growth is based on a cycle, like the rest of your body. It continuously grows because of nutrients such as vitamins and minerals you obtain from food. It is genetic how thick, dark and how fast it grows. That is why men tend to have 6 o'clock shadows, because of continuous growth. The only way to retard/slow down hair growth is through chemical intervention, by a dermatologist or beautician and laser procedures.

Does the rate of hair growth change with temperature?

heat may open the follicles , no pat answers average

half an inch a month and if your in a cold climate

definitely add anti freeze to your shampoo

Does the rate of hair growth change with temperature?

I'm guessing that possibly human's hair would grow a bit faster in the cold, because we are mammals, and most mammals grow more hair come the winter time. I'll use cats as an example. Have you ever seen a longhair cat who is not frequently combed? Well when the springtime comes around, they get mats all over from the excess hair they grew in the winter falling out. Also, when it starts to get warmer, my hair comes out easier (on my brush and whatnot), and my pets shed quicker. So I know you can't base humans on pets, but maybe it's a natural trait we share with most mammals.

Or maybe it's just a mentality. I hope you get a better answer than mine!

Does the rate of hair growth change with temperature?

When you go into a cold environment, your hair follicles raise (goosebumps). When they appear to return to normal, you have slightly more hair above the skin than before. This hair was already there, it was just under the skin. Overall, your hair won't grow faster, because your follicles will slowly retract back to their normal subdermal level as the hair continues to grow. Extremes of hot or cold can damage the hair at the ends, which appears to slow the growth. Slightly hot or slightly cold makes no difference at all.