Stand up for science. (Science News of the year: the weekly newsmagazine of science).Understanding the dizziness dizziness: see vertigo. that astronauts often feel after space flight may help explain orthostatic intolerance Orthostatic intolerance (OI) is a subcategory of Dysautonomia, a disorder of the autonomic nervous system. [1] OI can also be defined as "the development of symptoms during upright standing relieved by recumbency," or by sitting back down again. , a disorder in which patients get faint or dizzy while standing. Here, one astronaut astronaut, crew member on a U.S. manned spaceflight mission; the Soviet term is cosmonaut. Candidates for manned spaceflight are carefully screened to meet the highest physical and mental standards, and they undergo rigorous training. monitors a test in which another astronaut (foreground, beneath tubes)lies in a device that produces negative pressure on the lower half of his body, mimicking the effects of gravity on blood flow. (161:376). |
|
||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion