The brain is on high alert when we think sleep-depriving stressful thoughts or habitually worry as soon as we turn out the light. Night time is the worst time to sort out your life. We only sleep when we are relaxed and in the parasympathetic calming system. The cognitive shuffle is a technique where we think of mindless words from the alphabet that have NO emotional or meaningful connection. The brain becomes tired and we fall asleep.
Cognitive Shuffle – Good Night, Toast – Oprah Mag By Kelly DiNardo – Oprah May 2017