It's all related to placebo effect and positive attitude - perhaps throwing in the concept of hope. You could throw the idea of intent in there as well. Basical

It's all related to placebo effect and positive attitude - perhaps throwing in the concept of hope. You could throw the idea of intent in there as well. Basically along the lines of once you initiate positives-feel-good thoughts then those will impact everything else you do - and things like exercise that increase good feelings physically, then those associated thoughts and memories will have more feel-good attached to them. Bit of a tangent I went on..