What if the baby whines and writhes when he sleeps?

Baby sleep hard twist, hum, for this situation, first need to be clear what is caused, if the baby vitamin D deficiency rickets, may also be accompanied by pillow baldness, sweating, easy to wake up, night cry, etc., this time need timely vitamin D supplementation. In addition, appropriate outdoor activities, sun exposure will gradually improve symptoms. If the baby brain injury syndrome, this time need to timely to the regular hospital for early assessment, early intervention.