It's that time of year where I've started to hear it repeated that running cold water over your wrists is a way to rapidly cool down.
The theory goes that blood is close to the surface in this area so the constant flow of heat on one side and cold water on the other side will cause rapid cooling.
I had a cursory glance on Google Scholar but failed to find anything relevant, however, I did find this newspaper article, citing Dr Michael de Podesta at the National Physical Laboratory in Britain:
Another trick Flower suggests is running cold water over your wrists. ‘There are lots of little blood vessels on your wrist and these will keep the blood cool,’ he adds.
But it's not a very substantive source. Any ideas?