Astronauts on the ISS lose about 1-2% of their bone density per month in microgravity — meaning a six-month mission costs them as much bone mass as a postmenopausal woman loses in a year — and the countermeasures NASA developed to slow that loss - Space Daily

Astronauts on the ISS lose about 1-2% of their bone density per month in microgravity — meaning a six-month mission costs them as much bone mass as a postmenopausal woman loses in a year — and the countermeasures NASA developed to slow that loss Space Daily Space physiology and technology: Adaptations, countermeasures, and opportunities for wearable systems EurekAlert! Advances in Space Physiology and Wearable Tech: Adaptations, Solutions, and Future Opportunities Bioengineer.org