I’m a huge chess player. Loved this.,(reply>), How r u huge and loved this?,(reply>), @Uku Stress, which increases metabolism. Sure the heart is pumping, muscles may twitch more. But that does not explain the energetic expense. And I've not really read the studies, but I don't think you can explain it by a stress response alone, and if so that would be a lousy way to calculate the energy expense of mental athletes.,(reply>), @Uku well, he's just saving calories for a big tournament, as you may have heard serious chess players may burn up to 6-7k kcals a game, from just mental activity!,(reply>), And I'm just right :),(reply>), I'm a tiny chess player