Long Term Risk And Reward Missions

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Long term exposure in space poses multiple threats to astronauts who are tasked to complete high risk and reward missions. Some of the most prominent threats include loss of muscle mass, decrease in bone density, and weakening of the immune system. Other dangerous potential effects are alteration in circadian rhythms and exposure to radiation. Each effect either has current treatments, or are currently being researched to discover more effective forms to combat the potential dangers they pose. Since the beginning of time the human body has evolved to adapt to changes in surrounding environment, altering the physical and mental parts of the body. Adapting to changing environments is key to the survival of humans, because without these alterations the human body would become obsolete and left behind. This process of bodily change has not only been demonstrated throughout the history of mankind on Earth, but can also be seen from how the body attempts to change when exposed to foreign environments, like space. Research and evidence from previous space travel expeditions have shown that the human body is subject to change, mostly negative, when exposed to long term space flight. There are multiple effects the body endures during space flight such as muscle atrophy, adjustments in bone structure, decreases in the capability of the immune system, and adjustments in circadian rhythm. For the majority of these adverse effects, research has been conducted to help protect and

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