Phones make lousy pillows. Their blue light and tiny vibrations keep issuing cues that make the brain scan, predict, and react, while an hour of feeds can leave the sympathetic nervous system lightly engaged even as the body is parked on a sofa. Stillness is not recovery. Attention, not posture, sets the bill.Scrolling is counterfeit downtime. Each refresh invites an orienting response, and variab...More