[Source: Science Daily]

A large natural experiment in Catalonia shows that moving to areas with higher levels of air pollution is associated with weight gain in young children. The study, led by the Barcelona Institute for Global Health (ISGlobal), an institution supported by “la Caixa Foundation,” in collaboration with the IDIAP Jordi Gol, provides further evidence to support efforts to reduce air pollution.

Overweight and obesity in childhood result from the interaction of genes, lifestyle behaviors, physiological and social factors. Environmental exposures such as air pollution may also play a role. However, it is not yet clear whether there is an association between air pollution and childhood obesity, and whether it is causal (i.e., whether air pollution directly causes obesity or overweight).

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