This paper aims at the study and modeling of biological and physiological effects of atmospheric and space flight (weightlessness, space radiation, acceleration, and altitude stress) on the human being; and the prevention of adverse effects of those environments. Our thrust is on studies and effects of flight through the atmosphere or in space upon the human body and with the prevention or cure of physiological or psychological malfunctions arising from these effects. By mathematical modeling and simulations, our vision is to come up with an alternative 'Aerospace medicine' with special interests on stress, physiological, and radiation effects of conventional medicine on the human being with direct application to aerospace flight and environments.