Non-measurable Effects

Yesterday I attended a workshop in which we covered various measurable aspects of the stress response and holistic methods of alleviating that response, like meditation, yoga and breath work.  The measurable responses like hormone levels or activity within specific areas of the brain can be readily recorded and quantified.  It is those aspects where the focus is, for obvious reasons.  I asked and am intrigued by the non-measurable responses like the fact that the mere presence of an observer has an impact on the outcome or the impact of a loving connection between the people in the experiment.  As was pointed out by the speaker, I make use of that response, daily.  I suspect it has a very large impact.