@aurelius if you haven't been keeping up with what Dr.Rip has been saying recently (doesn't cite his sources that i see) but it might seem that testosterone affects male development in the womb. Things are set into motion there that cannot be undone (paraphrasing rip).aurelius wrote: ↑Wed May 15, 2019 10:34 amI don't want to muddy the discussion with special cases: let us assume completion of adolescence into early adulthood. After 19-21 an individual began to transition.
This is my main question. The general knowledge and literature recognizes significant difference between men and women as they undergo and complete puberty.
My understanding is this includes bone structure and density, muscle mass and density, CNS differences, and so on. Not all of which are altered by modifying the hormonal profile of an individual later in life. To reduce the differences between biological males and females to a simple testosterone range seems to be missing the forest for the trees.
something something about 8 weeks in ...?!?!
I remember seeing another article/paper how mixed twins have some interesting characteristics.
The male and female fetuses are sharing that same amount of test. circulating in the womb.....
i.e. a female twin with a male twin has some different characteristics than female/female twin .... or a plain ol' single born female.
I didn't get into too much....but you can google the topic more.
https://www.leidenpsychologyblog.nl/art ... hypothesis
(Note this was only a psychology paper/article, not really looking at "it" from athletic performance perspective....but one could draw conclusions from this of course.)
In further support of the TTT hypothesis, physiological/morphological characteristics such as otoacoustic emissions (sounds produced by the inner ear either in response to a sound or in the absence of any stimulus (F>M)), tooth size (M>F) and brain size (M>F) also seem ‘masculinized’ through the intrauterine presence of a brother.
Interestingly, the TTT hypothesis holds not only for girls gestated with a brother: boys gestated together with another twin brother are also more masculinized than boys with a twin sister. However, the effects of gestation with a male co-twin are more pronounced in females than in males, possibly because females produce little testosterone themselves and therefore may be more susceptible to external testosterone.