I recently purchased this bio-feedback product, that allows you to elevate and change your pulse, now what’s – interesting – something they taught me – for I always associated nervousness with an elevated heart rate, is that also joy, happiness creates a heightened heart rate (trusting them on this) but the lesson is this – and a most important lesson indeed) there isn’t only the state "to be or not to be" there is two kinds of being, there are positive love based, hence constructive! and negative anger hence destructive! states