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American astronaut Marsha Ivins demonstrates the effects of microgravity on her hair in space. The effects of spaceflight on the human body are complex and largely harmful over both short and long term. [1] Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton (spaceflight osteopenia). [2]
Unlimited Radiation Risk - NASA management, the families of loved ones of astronauts, and taxpayers would find this approach unacceptable. Comparison to Occupational Fatalities in Less-safe Industries - The life-loss from attributable radiation cancer death is less than that from most other occupational deaths.
Records of medical problems that were encountered by astronauts during space flights; Information on medical conditions that occurred during expeditions on Earth in extreme environments (submarine, alpine, Arctic and Antarctic expeditions, expeditions to other remote ground-based locations, etc.) or NASA's Extreme Environment Mission Operations
Women have been underrepresented (since its inception, NASA has selected 299 male and 61 female astronaut candidates) making women’s health even harder to study.
To better understand how spaceflight affects individuals, researchers assessed blood samples from 14 healthy astronauts. A total of 34 mutations in 17 genes were identified, which may indicate…
Recently released photos of two NASA astronauts stranded aboard the International Space Station (ISS) have caused health concerns to rise. Although Sunita Williams and Barry Wilmore were ...
The most effective way to provide adequate support is to establish a thorough pre-flight health status assessment and develop a systematic approach to autonomous health care in space. [1] For NASA, specific provisions and requirements for medical services during space missions are outlined in NPD 8900.5B NASA Health and Medical Policy for Human ...
NASA has reported that fifteen long-duration male astronauts (45–55 years of age) have experienced confirmed visual and anatomical changes during or after long-duration flights. [5] Optic disc edema, globe flattening, choroidal folds, hyperopic shifts and an increased intracranial pressure have been documented in these astronauts. Some ...