It’s often claimed that we only burn fat if you exercise for at least 30 minutes. Truth is, our bodies always burn both fat and carbohydrates during exercise. And fitness fans are often told that exercising on an empty stomach promotes weight loss. That’s not true either - in fact, it’s the calories we burn over the course of the day that matter.
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Then there’s the claim that the best remedy for sore muscles is more exercise. That’s also a myth - sore muscles mean it’s time to take a break.