Two-month-old babies laugh out loud in their sleep may be a normal phenomenon, such as imperfect development, comfortable sleep environment, pleasant dreams and so on.
1. Imperfect development: Since the development of the nerve, brain and other systems of the two-month-old baby is still imperfect, therefore, there may be unconscious movement of the muscles around the mouth, so it is easy to have the phenomenon of sleeping and laughing out loud.
2. Comfortable sleep environment: If the two-month-old baby sleeps in a comfortable environment, so that the baby feels familiar and full of security, then the situation of sleeping and laughing out loud will occur.
3. Pleasant dreams: Although two-month-old babies are younger, they can dream, so they will also laugh out loud when their dreams are happy and pleasant.
Two months baby sleep laughter, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.