Probably something to do with shallow breathing so you inhale and exhale more often the one should without maximizing oxygen intake per breathe nor efficiently regulating oxygen/co2.
But how could we be "conditioned" to breath in a certain way? It reads like a conspiracy to me but maybe that's not what they meant?
To me, breathing is a highly personal thing, I doubt there is any outside force able to change how we breathe for the worse. I just don't see the attack vector. We breathe how we feel we need to breathe.
>But how could we be "conditioned" to breath in a certain way?
bad posture, overweight, too little exercise, too much stress. Not much of a stretch to think that the behaviour that gives countless of people snoring, backpain, or high BP may also negatively effect how we breathe.