"As well as losing muscle and bone mass, general fitness can reduce, and so can blood volume." Of course, this isn't a problem for astronauts while they're actually in space - as there are ...
NASA is working urgently to help astronaut Sunita Williams address significant weight loss she has experienced ... hours daily to preserve muscle and bone mass, which further increases their ...
Astronauts Suni Williams and Butch Wilmore ... iced Christmas cookies in microgravity and worked out three hours a day to prevent loss of bone density and muscle mass. First their return ...