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
Henri-Étienne Beaunis articulations, myology, viscera, senses, the human body in general, and embryology. Bouchard wrote the sections on angiology and neurology. In 1870 and 1871, Beaunis underwent the Franco-Prussian War which led to the French side losing a part of Alsace-Lorraine. In 1871, he published in the "Gazette médicale de Paris" extracts of his diary describing his life during this period and more specifically during the Siege of Strasbourg. He described the intellectual climate that was developing before the war and the progressive opening to scientific dialogs both in Germany and France, especially in the fields of physiology and medicine. After his