Orthostatic Intolerance
Orthostatic intolerance (OI) is a medical condition characterized by the inability of the body to regulate blood pressure and heart rate in response to changes in posture, particularly when moving from a lying or sitting position to a standing position. This can lead to symptoms such as dizziness, lightheadedness, fainting, and nausea. In the context of space and astronautical engineering, OI is a concern for astronauts during spaceflight, as the microgravity environment can cause changes in blood volume and distribution, leading to a higher incidence of OI upon return to Earth's gravity. OI can also be a concern for space tourists or future colonizers of other planets, as the lower gravity environments may also cause similar physiological changes.
Your Previous Searches
Random Picks
- Federal Aviation Administration: The Federal Aviation Administration (FAA) is a governmental body within the United States Department of Transportation that regulates all aspects of civil aviation in the country as well as over its surrounding international waters. Its pow ... Read More >>
- Comets: Comets are small celestial bodies that orbit the Sun and are composed of ice, dust, and rocky particles. As they approach the Sun, the ice in the comet's nucleus vaporizes, creating a glowing coma and sometimes a tail that can extend millio ... Read More >>
- Long Cycle Life: Long cycle life refers to the ability of a battery or energy storage system to withstand repeated charge and discharge cycles without significant degradation in performance. In the context of space and astronautical engineering, long cycle ... Read More >>
Top News
Bestselling author explains the science of happiness: "You can do the work"...
Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....
News Source: CBS News on 2024-11-18
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....
News Source: CBS News on 2024-11-15
You can't put a price on the sense of awe particle physics inspires...
Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...
News Source: New Scientist on 2024-11-13
If you want to stretch your gift game into days this holiday, check out these ad...
The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...
News Source: ABC News on 2024-11-04
November brings a bonanza of meteor showers...
November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....
News Source: NBC News on 2024-11-02