20. How many g's will we sustain going out of and coming into our atmosphere during our space vacation? Will we black out? Can g-forces cause severe harm to the human body if you're not trained for it? (A K2S Question)

From The Space Library

Early astronauts experienced g-forces of up to six g's or more. Space Shuttle astronauts experience around three g's on take-off and reentry— this is due to acceleration. As little as four g's can cause a person to black out without the aid of a g-suit. With a g-suit the human body can handle seven g's sustained. Blacking out from g-forces can cause brain damage or even death if blood flow to the brain is not restored.

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Answer provided by Dana S. Klein & D. Brooke Owens

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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