There is some biological evidence that some transgender-spectrum people have brain hormone receptors which are optimized for female hormone patterns and for whom male hormone patterns are as though somewhat toxic.



Do you have a source for this? I would be interested in reading it.

What do you ...

The following quotes should answer most of the questions in this topic.

"It has been found that when testosterone and endorphins in ejaculated semen meet the cervical wall after sexual intercourse, females receive a spike in testosterone, endorphin, and oxytocin levels, and males after orgasm ...

Disclaimer: I'm not a doctor or any professional.

Read this: http://en.wikipedia.org/wiki/Osteoporosis

Normally I'd just post the good info. In this case most of that page is useful.