Could obesity be in the air?

Earlier this year an article published in the Proceedings of the Royal Society of Biology suggested one cause of obesity might be in air, water or some other part of the environment. As evidence, the authors showed it’s not just humans who are getting fatter in western societies, but many different animals – including wild rats, pet cats and dogs, and laboratory raised mice and monkeys.

The study would have caused barely a ripple had it not been conducted by a group of eminent obesity researchers and published in a prestigious, peer-reviewed journal. 

Experts in the field were reluctant to give the theory too much attention until more evidence was forthcoming. 

That now seems to be happening. In a recent Journal of the American Medical Association lead article, researchers found increased levels of heart disease and diabetes in people with high levels of the environmental pollutant, Bisphenol A, found in plastic bottles and food

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