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Shivering could count as exercise, study finds

Shivering for 10-15 minutes a day could be equivalent to doing an hour of exercise, a study suggests.

Scientists from Sydney University placed volunteers in temperatures below 15C for the experiment.

They found that the process triggered hormonal changes producing brown fat - which burns energy to keep warm.

However Dr Paul Lee, one of the scientists behind the research, told BBC Radio 5 live's Up All Night: "It's important that if we do want to expose ourselves to cold, it is mild cold exposure."

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