If you were asked in 1916 to hold a needle in your hand blindfolded while someone fires a pistol behind you then the country you are applying to fly for is France.
Aviation physiology examines the physical and psychological effects of flight on passengers and members of the flight crew. When involved in aviation, the body's compensatory mechanisms are subjected to numerous, heavy demands. The physical and psychological effects of flight must always be kept in mind by pilots while on the fly. from assessing the body's response to fatigue or high altitude. The Federal Aviation Administration says. "Every human is physiologically different and can react differently in any given situation," according to the FAA Facts in a guidebook. The three environmental factors that have the most significant physiological impact during a flight are pronounced changes in barometric pressure, significant temperature variation, and rapid three-dimensional movement.
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