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.
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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.