INDIA, Jan. 18 -- High exposure to early life stress at home, coupled with elevated prenatal exposure to air pollution may put children at a higher risk of attention and thought problems. High exposure to early life stress at home, coupled with elevated prenatal exposure to air pollution may put children at a higher risk of attention and thought problems, according to a study. Researchers, including those from Columbia University in the US, said early life stress is common among children from disadvantaged backgrounds, who also often live in areas with greater exposure to air pollution.The study, published in the Journal of Child Psychology and Psychiatry, assessed the combined effects of air pollution and early life stress on school-age ch...