Space stations, especially the most recent ISS, were designed to keep the astronauts as comfortable as possible-the ISS modules are roomy, bright, and kept at a constant 70 degrees Fahrenheit. It is important that the crew members are comfortable because they are kept busy all their waking hours. In a typical day, crew members will spend twelve hours working, two exercising, two preparing and eating meals, and eight hours sleeping.

Despite the amenities provided, life in space requires considerable acclimation. Once on board a space station, the first order of business for novice astronauts is to become accustomed to the weightless environment, adjust to living in close quarters, and master new technologies necessary for carrying out routine daily activities. These three conditions, unique to all space stations, mean that the most basic and commonplace daily activities require rigorous attention, patience, and coordination.

Space Adaptation Syndrome