NASA's Human Research Program is investigating the risk of venous thromboembolism (VTE) in astronauts caused by stagnant blood flow in microgravity
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Why in news
NASA's Human Research Program is investigating the risk of venous thromboembolism (VTE) in astronauts caused by stagnant blood flow in microgravity.
Background
NASA's Human Research Program is studying how microgravity leads to stagnant blood in internal jugular veins, increasing clot formation. Astronauts currently use resistance exercises and Lower Body Negative Pressure (LBNP) technology to mitigate these risks.
Facts for Prelims
- S&TVenous thromboembolism (VTE): A condition where blood clots form in the veins, investigated by NASA's Human Research Program.
- S&TLower Body Negative Pressure (LBNP): A technology used by astronauts to simulate gravity and mitigate blood clot risks.
- FactInternal jugular veins: The specific site where stagnant blood flow occurs in microgravity.
For Mains
Q. Discuss the physiological challenges faced by humans in microgravity and the technological interventions required to ensure long-term space habitation.
Dimensions to cover in your answer
- Physiological adaptation: Counteracting fluid shifts and venous stasis in microgravity environments
- Technological mitigation: Efficacy of LBNP and resistance training in maintaining vascular health
- Biomedical research: Identifying long-term risks of venous thromboembolism for deep-space missions
Keywords: microgravity · venous thromboembolism · physiological adaptation · biomedical engineering · space exploration
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