According to this article doing puzzles such as Sudoku can help you burn calories. The claim has been made by mental agility experts cannyminds.com who say that doing puzzles and quizzes burns as average of 90 calories an hour. It is based upon the fact that our brains need 0.1 calories every minute to survive. When we do something more challenging such as a quiz we can burn more calories as many as 1.5 a minute. The bad news, however, is that whilst the brain does use up energy it does not use fat to do so so you might burn calories, but are not going to get any thinner.
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