when in bed, why does our body parts get cold when they are removed from under the covers but our head stays at a nice temperature

Question

when in bed, why does our body parts get cold when they are removed from under the covers but our head stays at a nice temperature

In: Biology

Answer 1

Your skin is enjoying the warmth of the blanket except for your head. So when you let the heat from the blanked out, your skin reacts by telling your brain it’s cold.

Answer 2

Keeping blood supplied to your brain is super important, so your body prioritizes maintaining good circulation to your head. Your brain is still working while you sleep, while your limbs have the luxury of shutting down. And when you lie down, it is even easier to send blood to your head, because your heart no longer has to work against gravity.

Also, hair is a pretty good insulator.

Answer 3

* Hair is an insulator and keeps you warm and most people’s head is much hairier than their limbs.

* The brain burns a minimum of 20 watts but limbs burn very little while you sleep.