I am over a year on hormones, and have noticed a difference. I am quicker to cry, more emotional, less physical and dislike confrontations. Whereas before, those things were abhorrent to me - I didn't cry nor shy away from anything.
Take this with a massive pinch of salt - no scientific evidence, only anecdotal :p. But personally speaking, I think most has to do with the shift in the psyche rather than a chemical change.
As "guys", we're conditioned to bottle-up our emotions, to enjoy confrontation. But transitioning can act as an outlet for some of those pent-up feelings.
But overall, my personality hasn't changed. I still like the same things, and hate the same things, as before. But, I'm happier now than I ever was before!
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