How does it work describes the findings of Professor Grad from the University of Arizona Medical predisposition on future of a child in relation to smoking, when the mother smoked during pregnancy.

A woman smoking during pregnancy and during early childhood to create her child at home predisposition to smoking during adolescence and adulthood. Dr. Grad said that smoking during pregnancy influences the child's development, including its weight at birth and a risk of premature birth, among others.

On the impact of smoke before and after birth has brought the study of pregnant smokers and children whose mothers smoked during pregnancy. The team of Dr. Grad has studied tobacco consumption of pregnant women in nine days a month and a half and one and a half years of early pregnancy. The children were assessed at age six, nine and eleven years, between 16 and 22 years with their smoking.

If the mother smokes during pregnancy and infancy of her child, this smoking around the age of 22 years. If a mother smokes while her child is ten years, it does not develop propensity to smoke in adulthood. Children whose mothers smoked during pregnancy and early childhood they are less likely to quit smoking than those whose mothers never smoked or had smoked in ten years.

The consumption of the mother is taken into account regardless of the father and other people surrounding the child. For Dr. Grad, "The results suggest that a biological effect is at stake if a woman abstains from smoking during pregnancy and infancy of her offspring, it reduces the risk that her children become regular smokers. "

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