At conception, little boys are more at risk. Although nature provides for the birth of more boys, that number is apparently shrinking.
- The two XXs in the female version of our species offer some protection: In disorders where one X chromosome has a genetic defect, the female’s healthy backup chromosome can take over. But with his single X chromosome, the male lacks a healthy copy of the gene to fall back on. The X chromosome, which never shrank, is also a larger chromosome “with far more genetic information than the Y chromosome,” finds Irva Hertz-Piciotto, a University of California, Davis autism researcher, “so there may be some inherent loss of key proteins for brain development or repair mechanisms in boys.” This is a clue to the higher autism rate among boys, she asserts. 
For the complete article, please go to http://www.scientificamerican.com/artic ... S_20140221
Women must clean up their homes and environment in which they live (without using harsh chemicals) in order to protect their young ones, especially their little boys.


