Darby Saxby, Assistant Professor of Psychology at USC, studied clutter in a home, and the effects on persons living there. Her research found that home clutter can affect a person's level of cortisol, the stress hormone. She told Real Simple magazine in the February 2016 issue (pg. 128) "One of the things that make people have a physiological stress response is feeling a sense of overload, and clutter is a nagging reminder of things that are left undone." From what I have seen from working with my clients, that is certainly true. It is like a weight is lifted as the clutter begins to clear and a calm enters your life as you complete each area. Give it a try and see if you agree.