There's no gravity in space - this affects their muscles. Exercising keep the muscles toned.
their suits are very heavy.
astronauts like to exercise while in the ship
Astronauts have work out machines to keep their muscles strong. They exercise every day.
If astronauts don't exercise in space, weightlessness eventually causes there muscles to shrink?
there sweat starts to float in the space shuttle because once the astronauts are exercising in space they would start to sweat
In a zero gee environment (weightlessness), the Human Body almost immediately begins losing muscle and bone mass. If they did not exercise, Astronauts returning from Space after a long stay on the Space Station would be unable to walk, and would have to be in a wheelchair for weeks before they could learn to walk again.
They need to exercise with regularity because the muscles begin to atrophy and bones begin to lose density . This present shuttle mission to the International Space Station brought the C.O.L.B.E.R.T. ( named after the comedian) which is an acronym for Combined Operational Load Bearing External Resistance Treadmill ; see related links .
They need to take it with them. There is no oxygen in space
Type your answer here... suck each other's_____.They exercise.
They exercise for up to 2 hours each day, so that their bones and muscles don't become weak.
food, water, shelter
I am not sure, ask NASA