Asthenization

In medicine, asthenization is a condition experienced by astronauts following long-term space flight, in which following return to Earth the astronaut experiences symptoms such as fatigue, irritability, lack of appetite, and sleep disorders. The condition's name derives from asthenia, which is a medical term denoting a feeling of weakness without actual loss of strength.

It is suspected to be a psychosomatic effect of the result of overachieving astronauts no longer having a goal after becoming astronauts, or potentially a neurological effect of microgravity. Buzz Aldrin, the second man to walk on the moon, was afflicted with this condition after returning from the moon.

References

Nick Kanas, MD; Vyacheslav Salnitskiy, PhD; Vadim Gushin, MD; Daniel S. Weiss, PhD; Ellen M. Grund, MS; Christopher Flynn, MD; Olga Kozerenko, MD; Alexander Sled, MS & Charles R. Marmar, MD (November 1, 2001). "Asthenia—Does It Exist in Space?". Psychosomatic Medicine. 63 (6): 874–80. doi:10.1097/00006842-200111000-00004. PMID 11719624.
"Brain Oxygenation, Cerebral Blood and Liquor Dynamics in Cosmonauts during Space Flight".

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Space medicine
Main areas	Artificial gravity Astronautical hygiene Bioastronautics Neuroscience in space Space exposure Space food Space nursing Space weather Weightlessness
Illness and injuries	Asthenization Ebullism Illness and injuries during spaceflight Medical treatment during spaceflight Space adaptation syndrome Space and survival Spaceflight osteopenia
Organizations	Aerospace Medical Association National Space Biomedical Research Institute Rubicon Foundation Space Nursing Society
Other topics	Adverse health effects from lunar dust exposure Cardiac rhythm problems during space flight Central nervous system effects from radiation exposure during spaceflight Effect of spaceflight on the human body Effects of sleep deprivation in space Epidemiology data for low-linear energy transfer radiation Fatigue and sleep loss during spaceflight Health threat from cosmic rays Intervertebral disc damage and spaceflight List of microorganisms tested in outer space Psychological and sociological effects of spaceflight Radiobiology evidence for protons and HZE nuclei Reduced muscle mass, strength and performance in space Renal stone formation in space Spaceflight radiation carcinogenesis Team composition and cohesion in spaceflight missions Visual impairment due to intracranial pressure

Asthenization

See also

References