Naaaah!..I am sure the physiologists and "back room boys" will come up with some "cock and bull" research which will show that a "cuppa tea" will cool you down more than an nice ice cold drink.
Rubbish! if it is hot in the sun, or anywhere else for that matter, then an ice cold drink is the answer.
Can anyone remember the film "Ice Cold in Alex?"
John Mills after facing the heat of the North African desert, finally staggering into Alexandria, did not ask for a "nice cuppa" but an ice cold drink of beer.