Daleks truly care about the well being of us humans. They understand we tend to be uptight at times. With so much built up tensions within ourselves from daily stress it makes us humans far more threatening than a Dalek, and a Dalek will not tolerate being bested.
One Dalek has taken it upon himself to teach us humans how to relax through breathing techniques. Care to join in the calming exercise? Ah, c’mon! What’s the worst that could happen? EX-TER-MINATE TENSION!