Luckily, we can breathe without thinking which means that we have autonomic control of breathing. If we couldn’t, we would risk dying if we went to sleep (look up Ondine’s curse)! There are times when the body wants more oxygen (like during heavy exercise), and when the body wants less (like when we’re resting). How does our body automatically seem to know when to inhale more, and when to inhale less? Also, if we do have autonomic control of breathing, how is it possible to also have conscious control of our breathing? These questions get to the fundamentals of breathing control.
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16116_Peripheral_chemoreceptors.html
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