One also has her own limits. Since I am in the world of fitness, from my very first session with my very first client up to this very morning, there is one thing that I haven’t ceased to repeat, and that thing is: “Breathe!”. Even with my long-term clients it is still a concept not embedded in their brains. No matter in which way I say it or demonstrate it, when or how many times. They either breathe the other way round to my instruction or they just directly don’t breathe (they withhold it), even when they are dying with exhaustion, they hold on to their air for dear life.