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当人们的肌肉进行锻炼时,细胞也在产出其他东西:有助于维持大脑健康的分子。一直以来,科学家们都在努力解释锻炼对于精神影响的益处。现在,一个研究小组可能最终发现锻炼和健康大脑之间存在的分子联系。很多锻炼的研究都集中在我们身体做负重练习的部分。锻炼时,人体肌细胞会增加一种名为FNDC5的蛋白质的数量,而这种蛋白质的一个片段——鸢尾素——会被剪切下,并释放到血流中。它会驱动褐色脂肪细胞的形成,
As people’s muscles work out, the cells are producing something else: molecules that help maintain the health of the brain. All along, scientists are trying to explain the benefits of exercise for mental effects. Now, a research team may eventually find the molecular link between exercise and healthy brains. Much workout research has focused on the part of our body that does weight-bearing exercises. When exercising, the body muscle cells increase the amount of a protein called FNDC5, and a fragment of this protein, irisin, is sheared off and released into the bloodstream. It will drive the formation of brown fat cells,