Exercise in space keeps astronauts from fainting on Earth

New York, July 19 Nearly 50 years after man's first steps on the Moon, researchers have discovered a way that may help astronauts spending prolonged time in space come back to Earth on more stable footing. Dizziness or fainting due to changes in blood flow can occur after lengthy bed rest, among people with certain health disorders or in the case of astronauts, being in a low-gravity environment. "This problem has bedeviled the space program for a long time, but this condition is something ordinary people often experience as well," he said in the paper published in the Circulation: Journal of the American Heart Association. This is the first study to demonstrate that astronauts do not experience dizziness or fainting during routine activity after landing, as long as they participate in certain types of exercise training while in flight and receive IV fluids when they return to earth.