Air pollutants and population density increase childhood obesity risk – study

Researchers found that air pollution, smoking and a person's built environment may play role in obesity in children

Air pollutants and population density are increasing the chances of childhood obesity, and scientists are just starting to understand which chemicals and urban factors are the riskiest, according to a new US study.

Researchers reviewed 77 factors during pregnancy and 96 during childhood and found that air pollution, smoking and a person's built environment may play a role in obesity in children from birth to age 11.