It is capable of ignoring or overriding the automatic, metabolic system and produces an irregular pattern of breathing.
它能忽略或凌驾于自动的新陈代谢系统之上，并产生不规则的的呼吸模式。
2
During sleep the automatic metabolic system is less responsive to carbon dioxide levels and oxygen levels in the blood.
在睡眠期间，自动的新陈代谢系统对血液中二氧化碳和氧气的含量反应并不灵敏。
3
This occurs because during NREM sleep the automatic, metabolic system has exclusive control over breathing and the body uses less oxygen and produces less carbon dioxide.