anyone know why peoples nipples get hard when its cold?

[bigredguy]

i seriously am curious about this, guys and girls a like get hard nipples when its cold why, what purpose does it serve?

 

[Alienwho]

Well you get goosebumps when you get cold right? Prolly just goosebumps on the nipples.

 

[MrCodeDude]

That's a strange question, but hey, you have to ask somewhere.
-- mrcodedude

 

[luv2chill]

cutting glass...

l2c

 

[vi edit]

The skin around the the nipple pulls tight thus causing the nipple to look erect.

 

[thEnEuRoMancER]

In cold environments live beings react by minimising their surface with respect to their volume, minimising the heat loss. The ideal relationship between surface and volume is obtained in a sphere.

A nipple, subjected to cold environment, will thus react by trying to minimise its surface with respect to its volume, appearing as erect.

 

[raptor13]

This is not backed by significant medical knowledge at all but I think that when you get cold, blood runs around closer to the surface of your skin to keep your skin warmer. I'm pretty sure that's how it works until you get REALLY cold in which case your blood retreats to your internal organs leaving your apendages to die. That aside, it would make sense that if blood was running around the skin surface, certain parts of the body would react to that and become harder than normal. That, of course, leads to questions such as "Hey, did you leave your headlights on?"

 

[JesusCow]

probably the same reason you get goosebumps... to warm up

 

[vi edit]

Oh and I believe that goosebumps are some function of your body to make your hair "fluff" up. When you get goosebumps, it makes the hair on your body stand up then trap warm air under it. Sort of an insulation system for your body.

Not very affective anymore as we have been slowly reducing body hair over time. But still, the function remains intact.

Not sure how valid this is, I just remember reading it somewhere.

 

[Emulex]

maybe one time girls had hairy nipples.

 

[IcemanJer]

<< maybe one time girls had hairy nipples. >>

some of them still do..

 

[vi edit]

One time? I saw this one girl once who had hairier nipples than me. It was frightening to say the least.

I'm guessing that waxing nipple hair wouldn't be the most comfortable thing though.