Let's correct some misconceptions.
>Most of the people who are trends and going through the system of medication, are only taking testosterone
The ax attacker was male to female trans, so they wouldn't have been on testosterone.
>Since when did testosterone become a medication. I thought it was something males normally produce
Even outside of cross sex hormone treatment, testosterone is given to males who's bodies can't produce enough testosterone for whatever reason. Low T ain't no meme.
Ever wonder why old black women grow mustaches? Testosterone. Every human on the earth produces both testosterone and estrogen and both serve important functions in both males and females. For instance the dick is lined with estrogen receptors and if your shit drops below like 5ng/dl your libido will suffer and you'll likely experience erectile dysfunction. A woman experiences the same sort of libido issues if her testosterone is too low. There's actually a chemical in the body called aromatase that turns testosterone into estrogen too.
Isn't learning fun?