I agree with Joe, we are frightened of our own shadows nowadays. Go to Spain or Italy in August, it's this hot and the locals are prancing about in jeans and t shirts. When I was a kid I just ran about at school until I got sunstroke and fell over. There were always kids in matrons room who had overheated and no one thought anything of it. Nowadays they'd all be in intensive care.
btw why do people go and live in oz with all the evil spiders and crocodiles jumping out of the village pond. I hate the thought of the place, stay in blighty with nothing worse than wasps and midges