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Exercising your legs is necessary for a healthy brain and nervous system, said a new study that showed that neurological health depends on signals sent by leg muscles to the brain and vice versa. 一项新研究表明，腿部锻炼对于大脑和神经系统的健康十分必要，神经健康依赖于腿部肌肉传送到大脑的信号，反之亦然。 The results gave doctors new clues as to why patients with motor neuron disease, multiple sclerosis, spinal muscular atrophy and other neurological diseases often rapidly decline when their movement becomes limited. 这一研究结果为医生们提供了新的线索，解释为什么运动神经元疾病、多发性硬化症、脊髓肌肉萎缩和其他神经系统疾病的患者在运动受限时肌肉往往会迅速萎缩。 Reducing exercise makes it difficult for the body to produce new nerve cells -- some of the very building blocks that allows one to adapt to stress and challenges in life. 减少锻炼会降低身体细胞的再生成，而这些新生细胞正是人们适应生活压力并并面临挑战的基本要素。 | 
