Answer:
heroin
Explanation:
There is plenty of evidence showing that heroin use by the mother will often result in a condition called: neonatal abstinence syndrome (NAS), this makes babies become dependent along with the mother to the components of heroin.
The heroin is passed through the placenta, and this substance addiction trespassing causes many medical and behaviour problems.
The heroin addiction can often result in birth complications and as the baby is born, some diseases are more probable: venereal diseases, hepatitis, pulmonary complications, and prematurity.
The diseases can hinder the development of the baby, and some medical research suggests growth , motor problems and behaviour problems can be partially relieved by treating mothers with methadone during this pregnancy.
