NASA is currently looking for volunteers to lie in bed for 70 days.
The purpose of the study is to research the effects of microgravity on the human body. The study simulates the effects of long-duration spaceflight by having test subjects lie in beds for the 70 day period. The beds are tilted head-down at a six-degree angle. According to Dr Cromwell, this tilt which causes body fluids to shift to the upper part of the body, sets off cardiovascular events that are similar to what we see in a space flight.
“And by putting someone in bed for a long time, there is also atrophy of the muscle and atrophy of bone density,” she explains.
When astronauts spend weeks and months floating around in space – they don’t need to use more than a fingertip to propel themselves across the room, so their muscles go on vacation – the atrophy described by Dr. Cromwell.
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