Page 360 9.1. what shapes infancy? recreational drug use during pregnancy is very dangerous. which recreational drugs have been linked with a higher incidence of sudden infant death syndrome

Based on a study of recreational drugs that have been linked with a higher incidence of sudden infant death syndrome was the use of Marijuana and other recreational drugs like cocaine, crack, crystal, amphetamine, methamphetamine, and speed but cocaine was the most commonly used drug. The basis of the infant sudden death was that both maternal and paternal were using at the time of conception and during in the latter stage of pregnancy. Tobacco smoking of the mother during pregnancy can also affect the life of the baby. There is statistics base on the study on how many percents it will affect the condition of the infant.

The punnett square is the device used to predict genetics.