A Longitudinal Cohort Study of Body Mass Index and Childhood Exposure to Secondhand Tobacco Smoke and Air Pollution: The Southern California Children’s Health Study (30 page pdf, Rob McConnell, Ernest Shen, Frank D. Gilliland, Michael Jerrett, Jennifer Wolch, Chih-Chieh Chang, Frederick Lurmann, and Kiros Berhane, Environmental Health Perspectives, Nov. 12, 2014)
Also discussed here: Tobacco smoke, roadway air pollution linked to childhood obesity (Science Daily, Nov. 12, 2014)
Today we review research based on following the weights of several hundred children through their adolescence (from age 10 to 18) and their exposure to second hand smoke and to proximity to air pollution from nearby traffic. The link between smoking by pregnant mothers (in uterus exposure) has long been known to have an impact on the obesity of the child in later life. The researchers conclude that adding exposure to traffic pollution caused a weight gain equivalent to a 6.6% and all of the side effects that go with obesity, including high cholesterol, diabetes, high blood pressure etc.
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