It's easy to forget how functional the hair on our head is. It's not just there to fashion or lament when it starts to thin out (thanks a lot, male pattern baldness). It also keeps you warm.
How many times have you gotten a fresh cut during the winter time and then felt inexplicably cold when you went outside? It gets me every single time.
I mean, it pretty much feels exactly like this. Minus Olaf in the background.