Research conducted by Atsushi Okada from the nephro-urology department at Nagoya City University Graduate School and others has revealed that the risk of kidney stone disease increases for astronauts who remain in space for a long period of time because diminishing bone mass triggers a rise in calcium levels in urine.

However, the researchers also discovered that the malady, which causes severe pain in the upper and lower back, can be prevented by ingesting a therapeutic agent used to treat osteoporosis before taking flight.

The professor hopes their latest finding will improve the health of astronauts and ensure their safety.