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Article: Careers in Space Medicine
- Article from:
- Space Sciences
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CopyrightCOPYRIGHT 2002 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Careers in Space Medicine
Outer space has a very different environment from that of Earth. The atmosphere, radiation, and gravity levels are so drastically varied that several adjustments are made to protect astronauts from the deadly effects of the space environment on the human body. In particular, gravitational effects are not well controlled and the effects of long-term exposure to
microgravity
are unknown.
Several experiments have already indicated that major biological changes begin in the human body within minutes of spaceflight. For example, when
a person is exposed to microgravity, there is less blood volume in the legs and more in the upper body. This change makes the brain ...
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