But this could be fatal. The neck is very weak in small children and infants. When a child's head snaps back and forward, the brain violently strikes against the inside of the skull. This motion ruptures the bridging veins of the brain, causing pressure on the brain, possibly brain damage or death. If you are upset because your child cannot stop crying, try to calm down before dealing with him.
Babies cry for many reasons.
Hold the baby. Try different positions. Walk with them or rock them. Talk softly to them or sing. Play some soothing music on the radio.