Muscle And Bone Loss
Muscle and bone loss is a common physiological response experienced by astronauts during spaceflight due to the absence of gravity. In microgravity, the body no longer needs to support its own weight, leading to a decrease in mechanical loading on the bones and muscles. This results in a loss of bone density and muscle mass, which can lead to increased risk of fractures and decreased physical performance. Astronauts must engage in regular exercise and consume a nutrient-rich diet to mitigate these effects. Additionally, various countermeasures such as resistance training, vibration therapy, and medication are being developed to prevent or reduce muscle and bone loss during spaceflight.
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