5 questions about hormones and gender dysphoria. (Answers welcome!)

Something we need to know about hormones is not just what effects they have on transgender male to female patients, but the effects they have on men with no history of gender variance. This is because many of the supposed benefits of oestrogen for transgender people may be just benefits of oestrogen in general. 

A few comments about oestrogen from a crossdreaming site.  The author notes that 5 questions about hormones and gender dysphoria,.is for, "older readers with a history of male to female crossdreaming."