They call it the silly season in Darwin everyone gets pissed/drunk in the pub in the Air con, then walk into the sun and the brain just bubles from the heat and they go a little silly.
Doggie what is the serotonin thing you speak of?
Serotonin is one beautifull neurotransmitter... if you have enough of your own serotonin than you feel well and mental stabile..
if not than your problems start... from hard depressions to mad states can happen... and enviroment and hotness,specialy if a humid conditions are present can trigger your own madness as hot weather decrease your natural serotonin that you normaly
produce..
It looks like some joke but can explain why some folks go mad
in hot sun... also if you use alchohol than you also destroy your
serotonine levels and in combo with hot days its nothing
abnormal to see mad people..
Here about serotonine https://en.wikipedia.org/wiki/Serotonin
Kind regards Ozza