The four major factors that cause psychological stress are
(1) The feeling of having no control over a situation:
(2) The feeling of having no predictive information about what might happen;
(3) the sate of having no social, leisure, or fun outlets; and
(4) the feeling that your situation is only going to get worse.
By reversing these four factors, you can decrease psychological stress on a situation-by-situation basis.
– Dr. Wendy Suzuki (Healthy Brain, Happy Life, p. 184)