nerve degeneration

例句：

1. 1. The patient's nerve degeneration is causing him severe pain.
   患者的神经退化正在给他带来严重的疼痛。
2. 2.The researcher found that the aging process leads to a significant decrease in nerve function.
   研究者发现，随着年龄的增长，神经功能显著下降。
3. 3. The doctor advised the patient to take care of his nerves and avoid excessive stress.
   医生建议患者照顾好他的神经，避免过度压力。