Environmental factors explained 17% of the variation in risk of death, compared to less than 2% explained by genetic ...

Internal and external environmental factors, like gender and temperature ... A second example of how chemical environments affect gene expression is the case of supplemental oxygen administration ...

Kennedy Promises Exhaustive Studies to Identify Any Environmental Factors That May Cause Autism WASHINGTON (AP) — Health secretary Robert F. Kennedy Jr. warned that children in the U.S. are ...