2019 Volume 33 Issue 3 Pages 137-143
Human beings are higher organisms which evolved in 1G. When humans are exposed to the 0G space environment, they experience a large physiological change. Here, I introduce the changes, how to deal with them, and the findings accumulated so far. Physiological changes in the human body that occur in the space environment are characterized by the rapid progress of phenomena (orthostatic hypotension, bone loss, muscle atrophy, cardiopulmonary function decline, immune decline, etc.) similar to aging. The elucidation of these mechanisms contributes to the development of new treatments for the medical treatment of elderly people on the ground. Furthermore, I also give an outline of space life, and introduce various space technologies contributing greatly to life on the earth.