此外，科学家无法再生健康的神经元，所以在严重神经紊乱的实验治疗中无法使用神经元。
Furthermore, scientists' inability to reproduce healthy neurons has prevented the use of neurons in experimental treatments of severe neurological disorders.
身体锻炼还能促进神经元的再生，这可以帮助人们提高大脑的认知能力，增强记忆力，减少神经性疾病的发生。
Physical exercise, through the revitalization of neurons, helps to the increase of cognitive and brain functions, boosts memory and reduces the chances for neuro-degenerative diseases.
在大脑的一些局部区域，的确存在着神经元的不断更替——老的神经元细胞凋亡和新生神经元再生——并且这些新生神经元会参与学习环节。
Indeed, in some brain areas, there is continual turnover of neurons - old ones die and new ones are born - and these new neurons can participate in circuits that underlie learning.
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