Hi,

I am writing in here out of concern for my father.

He is 46 years old and has worked as a truck driver his whole life.

He has always hated the heat but recently in Australia over the last 5 to 7 years its just getting hotter and hotter due to climate change and the drought.

In summer, on a hot day, my dads body while hes at work will literally begin to shut down on him due to the heat.

He sweats all the time, even in winter and he sweats a lot.

He drinks heaps and heaps and heaps of water and he wears the loosest clothing he can.

He has been to the doctors about this before in recent years but it didn't go anywhere, they put him on salt tablets but it didn't change anything.

He has a truck with air conditioning at the moment, but last week he said he was so hot he had to get out of the truck drench himself in water and then get back in before he could start cooling down.

He finds it hard to breath, his lips and arms go numb and he either chooses to sit down before he falls down.

He hates it and it scares him because he feels he shouldn't be so useless at 46 years old.

To me it sounds a lot like heat stroke but its more severe, and he can just go from having a hot day, to doing minor work in the sun for 10-15 min and then its too late, all symptoms could be in full swing depending on heat and weather... and he drinks water, he really drinks water...

We just don't really know what to do anymore, he can't just really stop working, and hes fine most the year aside from summer. But were getting worried it could kill him one day.

Any comments/suggestions/theories welcome.