According to Dutch researchers, central heating may be contributing to ballooning waistlines. In this BBC News report, researchers say higher temperatures in homes, offices and hospitals provide more comfort, but mean bodies no longer need to burn extra calories to keep warm.

 A Maastricht University Medical Centre group says 19° C (66° F) is sufficient to provide the right balance. However, some argue that turning down the thermostat would merely prompt people to eat more.

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