Sure! It's been under active investigation by NASA for about eight years now: https://www.nasa.gov/mission_pages/station/research/experiments/1038.html https://

Sure! It's been under active investigation by NASA for about eight years now: https://www.nasa.gov/mission_pages/station/research/experiments/1038.html https://www.nasa.gov/mission_pages/station/research/experime... We're fairly sure we understand the mechanism--there's an experiment ongoing to confirm now, especially with regard to Commander Scott Kelly and his year-long mission on the ISS--but we're not entirely sure what to do about it if we're right. We're pretty well obligated for the next fifty years--give or take--to microgravity environments for long-duration spaceflights for lack of research into spinning toruses or tether systems. Microgravity is a tough environment for a human to live in, physically.