If in human physiology we could only sweat from/through ONE single part of our bodies, which do you wish it could be, and why? ~

Trunk.  The purpose of the sweat is to cool, and  the trunk is most important as far as  regulating temperature goes.....if you are hot try to cool the trunk and if you are cold try to warm the trunk.  Ever wonder why down vests keep you warm? This post was edited by Thriftymaid at February 29, 2020 3:59 PM MST

Our skin is a single organ, therefore it is one single place. The rest is what Thriftymaid said.