Swaddling is the age-old practice of snugly wrapping infants in cloths or blankets so that movement of their limbs is tightly restricted. Originally believed to be an essential part of stimulating proper posture in infants, swaddling is still widely used today to settle and soothe irritable infants, supposedly by providing warmth and security for a baby who has recently left the womb. Swaddling should be stopped once the baby learns to do what? Discuss