Alarming for NASA: After Sunita Williams, second stranded astronaut in ISS is also losing weight

It has been actually pretty long that eminent and renowned astronauts Sunita Williams and Butch Wilmore are being stranded at the International Space Station for near about six months now. In a recent development it has been known that besides Sunita Williams, Butch Wilmore is also losing significant mass from his body and NASA is eventually keeping a close eye on both of them.