There are plenty of sex differences in human physiology: Body composition, skeleton, hormones, sexual organs, sensory systems, etc. My question is:
How would it feel for a woman to be placed into a male body and what difficulties she would face when it comes to physiology?
Basically, I want to know if walking, eating, talking, and other normal everyday activities will feel the same or will need some readjustment period. Will differences in hormonal status have noticeable physiological effects? I also wonder if the consummation of marriage is possible.
When possible I would like the answers to focus on what would feel different and in what way. For example, an answer may suggest that walking will become harder because of the changed centre of gravity and for a while this woman in a male body will be moving like a drunk person (not sure if this is correct).
- 'Placed into a male body' can be understood as a soul of a genetically XX woman placed into a genetically XY male body (it is a miracle that does not need to be explained). Please assume that the female soul and the male body are compatible and there are no big problems with body functions. Some things may feel weird or different, but everything works fine.
- Psychological difficulties (including adjustment to a new gender role) are out of the scope of this question. Please do not concern yourselves with them. If physiological changes (e.g. hormones) cause distinctly different psychological responses it is okay to include them.
- While there are some differences between male and female brains, those that would make the premise impossible can be discarded. Please also assume that the female soul has complete and 'natural' control over the body and does not need to relearn how to walk, eat, talk, etc.
- If it matters, the woman is an adult, the male body is also a fully developed male body.
- The woman has her memories intact.
- Please assume that the height and weight of the new male body are approximately the same as the original female body.
I understand the theory of sex differences. I am looking for approximations of how it would actually feel to be in a body of different sex.
It might be easier to understand what I am looking for if you consider this:
You know how to drive a car and you have about 20 years of experience driving a MINI (or some other tiny car). One day your MINI is transformed into a family minivan with 3 rows of seats. You still can drive this minivan, you still can do it more or less safely. However, it feels different: Size, speed, acceleration, driver's seat, etc. The size feels too big or the vehicle feels too clumsy. The speed feels lacking. The acceleration is sluggish. The driver's seat is made of fabric and is cold making you grieve your old leather seats with heating. This new car is okay-ish but it just simply does not feel right.
More notes (in regard to opinion-based, unanswerable, etc.)
Every person has a mental representation of their bodies - body image. As a mental construct, the original body image will be still present when a soul is placed into a new body. Since body image contains knowledge and expectations about the normal functioning of one's body a new body will inevitably create cognitive dissonance and disturbances in body image. Also, since the operation of one's body (with the exception of the automatic functions) consciously and unconsciously relies on body image a newly transported soul may face difficulties.
This question is limited to sex differences in human physiology and their manifestation considering the disparity between the original body image and the new body. The sex differences are relatively well understood and researched, they are limited in number. It is also possible to approximate (and for some of those differences it is even possible to calculate) the specific effects.
For those who are confused by the wording 'how does it feel': Feel in the context of this question is not related to emotions but senses and physical experiences with the only exception of drastic physiological influence on emotions. I am not asking whether it will feel good or bad (that would be opinion-based), I am asking whether the person will feel out of balance due to differences in muscle and fat distribution and if so I ask to approximate how this out-of-balance condition will manifest from the body owner's point of view.
Another reason for asking how does it feel is because I am a woman. There are plenty of things that I do not know, do not understand, or would not even consider (see for example Nosajimiki's answer) due to the fact that my own body is not male. Consider pregnancy, no matter how much you read about the biology of pregnancy or watch videos you would have no idea how it actually physically feels to be pregnant unless you were pregnant yourself or someone who has been pregnant shared their experiences with you.
As for concerns about misgendering, invalidating, or questioning transgender identities, my question does not have anything to do with these topics. I specifically stated that gender identity is out of the scope of this question.
If you need clarifications or additional details, please, ask in the comments.