What are the two most asked questions ... ever ?
How do you poop and what's sex like in zero grav. ?
Sex in space? Press Conference.
https://www.youtube.com/watch?v=3BFzepWiUwU
Howard Wolowitz could demonstrate for you using his Mom's meatloaf.
NASA conducted multiple experiments with married astronauts to determine how copulation can be done in zero-g. Ensuring that the partners obeyed Newton’s third law of motion was the primary finding. The solution was to do it in a sleeping bag.
A much more critical study needs to be done to see if reproduction, gestation, and childhood development also occurs normally in space. Research by Michael Levin at Tufts University indicates that although DNA codes for proteins that are used to build the structures of the body no one understands how multiple individual cells arrange themselves into the shapes of hearts, liver, lungs, brains, fingers, and toes.
Levin’s theory is that there are archetype “fields” that influence the configuration of electrically charged ion channels in cells and act as a network or scaffolding to direct the emergence of structure.
This is analogous to the way energy density curves space time in Einstein’s General Relativity. In this case what is influencing the field is the population density of successful biological species that are structural copies of each other.
The concern is that if these biological fields fall off with distance from the population density, organisms that try to develop in space will not form the proper organ structures as quickly or at all.
This hypothesis needs to be tested before manned space colonization should be considered.