No, it's 172 calories per hour, not kcal, which is absolutely tiny compared to our metabolism. "The average human, at rest, produces around 100 watts of power"

No, it's 172 calories per hour, not kcal, which is absolutely tiny compared to our metabolism. "The average human, at rest, produces around 100 watts of power" http://large.stanford.edu/courses/2014/ph240/labonta1/ http://large.stanford.edu/courses/2014/ph240/labonta1/