What is it about babies and toddlers who like to sleep on their stomachs?

Infants and young children like to sleep on their stomachs, consider and insecurity, indigestion and other factors.
1. lack of security: for infants and young children, like to sleep on their stomachs, may be imitating the position of the uterus, which will make infants and young children feel secure.
2. indigestion: some infants and young children like to sleep on their stomachs may be due to indigestion factors, will sleep on their stomachs in a way so as to improve the indigestion brought about by abdominal distension, abdominal pain and other related symptoms.
Infants and children like to sleep on their stomachs, does not rule out the existence of other reasons, if necessary, with the doctor for examination, to understand the cause and then do treatment and treatment, but not blindly use drugs.