the enviroment can harm a baby if the pairants smoke the baby can brerath in the smoke and get lung problems or if they live in a house or whatever that has damp this could case the child heath...
It is not the asthma itself that affects physical development but the drugs that the child takes. If a child regularily takes uses a preventer inhaler containing a steriod eg becotide, serotide,...
Heredity has great influence in your physical development. Genes often determine the phenotype of an individual. For example, if your parents have the defective gene that causes dwarfism, then you'll...