Re. The linked story posted above about microgravity pressure effects causing buildup of CSF (cerebro-spinal fluid) leading to worse astronaut eyesight:
Vagus nerve stimulation has been shown to be useful for brain washing (CSF flushing / nutrient penetration). Presumably they will try that and see if it helps a bit.
Article: "Is Vagus Nerve Stimulation Brain Washing?"
https://www.biorxiv.org/content/10.1101/733410v1
Vagus nerve stimulation has been shown to be useful for brain washing (CSF flushing / nutrient penetration). Presumably they will try that and see if it helps a bit.
Article: "Is Vagus Nerve Stimulation Brain Washing?"
https://www.biorxiv.org/content/10.1101/733410v1