Space sickness
From Memory Alpha, the free Star Trek reference
Space sickness is a psychological condition caused by being off of a planet's surface. Its symptoms include nausea, dizzyness and disorientation.
Space sickness is often brought on by turbulence on a ship, or inertial dampeners being out of alignment, and is especially strong if a ship lacks artificial gravity. In many ways, space sickness is the deep space equivalent to sea sickness. Just as an experienced sailor is said to have "sea legs", experienced space travelers are said to have "space legs". Nonetheless, most space travelers experience space sickness from time to time. Space sickness could be treated by Inaprovaline. (VOY: "Relativity")
In 2267, Chekov joked to Sulu that frequent course changes between Vulcan and Altair VI were making him space sick. (TOS: "Amok Time")
In 2269 the Mira Romaine misinterpreted halucinations brought on by Zetarians as space sickness. (TOS: "The Lights of Zetar")
Worf was known to suffer from nausea when in zero gravity. (Star Trek: First Contact). Tom Paris claimed to be prone to space sickness after being brainwashed by Quarren. (VOY: "Workforce")
Ezri Dax suffered from this condition after being joined to her symbiont. (DS9: "Shadows and Symbols")
In 2375, a number of USS Voyager crew members reported symptoms of space sickness, which were found to be the result of temporal distortions produced by a temporal disruptor. (VOY: "Relativity")
Tuvok suffered from space sickness while the ship traveled through a neutronic wave front in 2376. (VOY: "Fair Haven")
- Space sickness is referred to as "space adaptation syndrome" as a medical condition in present-day Earth, and is believed to affect approximately half of all space-farers in microgravity. It usually lasts no longer than a few days as the body's vestibular system adapts to the microgravity environment. It is currently unknown how artificially-generated gravity would affect space sickness.
