Since everything is “lighter” in space due to the lack of gravity, you don’t need as much strength to do things so your muscles begin to deteriorate and weaken because you aren’t maintaining your strength.
Answer:
I wish you the best of luck on this but you might have to find someone smarter then me to answer this for you.
No
Memories are stored in your temporal lobes.
Amount of calories
Grams of sugar
Amount of protein
Expectation date