[steve-b]

Who can fathom how an arm or leg produces chill bumps, which in turn raises the hairs on those limbs in order to reduce the amount of body heat being expended by a cold wind?

I certainly can't, given that this reaction doesn't reduce the amount of body heat lost by humans -- the vestiges of body hair just don't raise any barrier to the wind.

Another day, another goofball argument down in flames.

[xzins]

Can you explain how they work is the question?

[Dataman]

the vestiges of body hair

Another good example of an unwarranted assumption.