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一、天然场与人体健康 1.重力场由于地球的万有引力作用,使得它约有9.8米/秒~2的重力加速度。人体不断地受到地球的引力,二、三百万年来的演变,人体的各部组织、各种器官以至于它们的运动规律都已适应了地球的重力条件。但是如果人长期在失重和超重条件下工作和生活,就会对人体造成不利影响。如在宇宙飞船中的宇航员处在完全失重的条件下,会引头部血压升高、头晕、呕吐等不适反应;相反在超重条件下,可使血压降低呼吸
First, the natural field and human health 1. Gravity field due to the universal gravitation of the Earth, making it about 9.8 m / s ~ 2 gravity acceleration. The human body is continually being gravitationally attracted by the Earth. After two or three million years of evolution, the tissues and organs of the human body and their laws of movement have adapted to the gravity conditions of the Earth. However, if people work and live under conditions of weightlessness and overweight for a long time, they will have an adverse impact on the human body. If the spacecraft astronauts in full weightlessness conditions, will lead to head blood pressure, dizziness, vomiting and other discomfort; the contrary, overweight conditions, blood pressure can reduce breathing