Hormones are responsible for the way genes are turning on and off at the right time of development. The timing and exposure will be what dictates the numbers of fingers or toes etc one might have. The internal and external environment around profoundly affects the way our genes express.
Toxins that disrupt hormones such as Phthalates, Perfluorochemicals (PFC’s) non-stick coating in your pans and Teflon, PFOA’s, PCB’s and endocrine disrupters such as BPA and flame-retardants (pillows, curtains, clothes, couches) are present in the body of the mother and have been shown to cross the placenta to the foetus.
In several replicated studies, laboratories have found an average of 200 plus industrial chemicals and pollutants in the umbilical cord blood. Tests showed a total of 287 chemicals. The umbilical cord blood housed concealed pesticides, wastes from burning coal, gasoline, and other garbage. Of the 287 chemicals detected in umbilical cord blood, we know that: 217 are toxic to the brain and nervous system, 208 cause birth defects or abnormal development in animal tests and 180 cause cancer in humans or animals.