After: Few days later she lost a few bones and her heart shrunk
Immune system gets affected
Her mass is less than before. This happens because after spending 110 to 237 days in low gravity, 30% of muscle strength is lost.
Your skeletal muscle starts to decrease cause your body starts getting rid of extra things they in order to remodel new bones to low gravity. Your heart is also shrinks, this is because the longer the flight to outer space, the changes get more severe. These changes happen because with no gravity the heart and blood vessels change.
Our immune system will also get affected after you stay in space for a while. This is because while in space your body interacts with all types of germs that can alter your immune system and this gives you a better chance of getting infections to almost anything.