European Space Agency flight surgeon Adrianos Golemis, who is responsible for the health of astronaut Thomas Pesquet during the SpaceX Crew-2 mission, shared some insights on the field of space medicine.A: If we talk about low Earth orbit where the ISS lies, you have almost zero gravity so that takes its toll on your bones and your muscles.
What we are aiming for is that your risk of developing cancer should not be higher than three percent as compared to a person exactly like you that has never gone to spaceflight. If you take that away, the veins in your feet will still keep pushing blood to your head as if you were in one G, so you end up with more blood in the upper part of your body.Eventually the circulatory system adapts, and the body becomes used to a lower volume of blood.
Your mind has a little bit of trouble, there is some sensory conflict between your inner ear, and what your eyes see. And this can create some vomiting.When you stay in an environment like the ISS, you're really in a very small place, so you don't have new stimuli and that has an effect on you psychologically.
We now have ultrasound capability, and if someone develops symptoms like pain or dilation, another member of the group can perform an ultrasound to assess if this is a clinical case of thrombosis.
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