One of the various great terrors of the initial space race was what outcome microgravity would have on human travelers and though we know it won't rapidly die when leaving the atmosphere, there's still very much we don't know about the long term special effects of low gravity. If we ever want to use a long-term space settlement, it'd be worthy to have some clue what occurs to the body in those surroundings... and according to several new researches, it isn't decent. An article distributed BMC Genomicsconsidered the effects of magnetically brought weightlessness on the life of the fly. Flies have been a main part of space study, and remain an important factor in understanding its effects to this day.
Image courtesy of Daniels and Daniels

By keeping the flies in microgravity over their whole growth cycle from beginning to adult, the scientists were able to determine lots of problems, and they aren't attractive. It seems that the weightlessness not only reduced growth time, but also affected the appearance of a number of genes during the insect's development, counting those convoluted with cell signaling, the immune system, reaction to anxiety, and variations in temperature. It's hard to pin precisely the effects of microgravity, as the magnetic field also effected the flies' development, it turns out spending their whole lives in a 11.5 Tesla field, wasn't that big for them also. However, the mixture of weightlessness and magnetism appeared far more difficult than the magnetic field on its own, and could have key consequences if we ever do want to conduct humans on a large length trip into space.
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