The lack of gravity astronauts encounter during spaceflight makes returning to the force of Earth's gravity a little disorienting.
The lack of gravity astronauts encounter during spaceflight makes returning to the force of Earth's gravity a little disorienting. And when they return to Earth, they faint.
A new study published Friday in Circulation, the American Heart Association's journal, has identified a way to avoid that. Surgeons assigned to some of the first astronauts to go into space during NASA's Mercury program noticed very few changes when they monitored heart rate, blood pressure and body temperature. "But what changed was when they returned to Earth," said Bill Carpentier, Apollo 11 flight surgeon.
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