In the shuttle program we have doctors onboard who could take care of the ache in space for us. We can even do tooth fillings on the shuttle. Every astronaut has perimedic training, too, so they can help each other on the shuttle if any problems come up, like a cold or aches and pains. You can take many of the same remedies in space as on earth. The most important thing is for astronauts to be fit and healthy before going into space.
Tous les astronautes suivent des cours de premier soins, et peuvent alors se soigner entre eux.
Digestion does work a bit differently. You eat the same amounts in space, but you burn fewer calories. Food takes longer to digest in space. La digestion prend plus de temps dans l'espace. Interestingly, digesting food does not require gravity.