Already in their first hours of life, healthy newborns try to lift their heads and display intense movement activity. However, when a baby is born, he doesn’t have much control over his limbs and body. His posture is dominated by his heavy head, which he isn’t able to lift at birth. Indeed, a baby’s head at birth accounts for 25 percent of his entire body length and 33 percent of his body’s volume. So while it may seem that learning to
