https://youtube.com/shorts/NxNUSQnVQ-A?si=wO8OhsXD8SHacX1C

산소가없는것보다 이산화탄소가 높아지는건 느낄수있게 진화했죠. 대부분 일상 밀폐된상태에서 산소가적음 =이산화탄소가 많아짐. 이니까 그래서 이산화탄소 농도가 높아지면 반사적으로 호흡속도가빨라짐

 

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