Effect of spaceflight on the human body Effect of spaceflight on the human body Venturing into the environment of space can have negative effects on the human body. Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton (spaceflight osteopenia). Other significant effects include a slowing of cardiovascular system functions, decreased production of red blood cells, balance disorders, eyesight disorders and a weakening of the immune system. Additional symptoms include fluid redistribution (causing the "moon-face" appearance typical in pictures of astronauts experiencing weightlessness), loss of body mass, nasal congestion, sleep disturbance, and excess flatulence. The engineering problems associated with leaving Earth and developing
Association for the Social Scientific Study of Jewry Association for the Social Scientific Study of Jewry The Association for the Social Scientific Study of Jewry (ASSJ) is a cross-disciplinary organization of individuals whose research concerns the Jewish people throughout the world. The ASSJ comprises primarily academics, but also policy analysts, communal professionals, and activists whose research concerns the Jewish people throughout the world. Social scientific disciplines represented include sociology, social psychology, social anthropology, demography, contemporary history, social work, political science, economics, and Jewish education. Members work throughout the world but primarily in North America, Israel, and Europe. The ASSJ encourages and facilitates contact among researchers, supports the dissemination