Just before a woman's period, all her hormones are dropping off, it is more like you lads coming off a cycle with no PCT.
Someone mentioned pain, I think that this is a major cause of anger, and a physiological one.
I have had a few major injuries, and loads of niggling persistent injuries (bodybuilding of course mostly), and I notice how annoyed I get at funny things like loud noises and sounds, which normally never bother me.
Our brains are really three brains in our head, each based on a previous evolutionary development, so there is the inner reptilian brain which controls the whole fight, flight or freeze response, the ???? sorry have to look it up, it is like the paleolithic brain, which rules the emotions, and the outer cerebral cortex, most recently evolved, which controls higher cognitive processes.
It has always been thought that the outer thinking brain dominates over the more primitive aspects of our brain, not so, in fact it is the opposite way.
The fight, flight or freeze response is much faster, and it will dominate all other responses, similarly for emotions, they will dominate unless you stop to think logically.
Mostly all that is needed for the thinking part of the brain to catch up is a wee bit of time, so there really is something to that old wives tale about counting to ten.
Also, of course hormones are going to effect your thought processes and emotions (all emotions arise from the amygdala in the brain).
I will have to double check on this with my neurology scientist buddy if anyone is interested, but I am sure he told me that there are receptors/enzymes that hydrolyse test to DHT in the brain.