““When a baby gets hungry and cries his levels of stress hormones will move upward. But if Mom or Dad regularly comes to feed him, they go back down, and over time, they become patterned and repetitive thanks to the daily routine. At times, nonetheless, the baby will feel distress and cry: not hungry, not wet, not in discernible physical pain, she will appear inconsolable. When this happens most parents hug and rock their children, almost instinctively using rhythmic motion and affectionate touch to calm the child. Interestingly, the rate at which people rock their babies is about eighty beats per minute, the same as a normal resting adult heart rate. Faster and the baby will find the motion stimulating; slower and the child will tend to keep crying. To soothe our children we reattune them physically to the beat of the master timekeeper of life.””
