Food for thought: Intense concentration burns calories

Chess is a sedentary activity. But Stanford University neuroscientist Robert Sapolsky says a grand master can burn through up to 7,000 calories a day.

Calories in vs. Calories out — Jessi Haggerty Nutrition & Movement Therapy

How can our brains burn 20% of our calories, while thinking only burns a tenth of a calorie per minute? - Quora

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The Wild Diet: Get Back to Your Roots, Burn Fat, and Drop Up to 20 Pounds in 40 Days

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Does Playing Chess Burn Calories? (Science Explained!)

How to burn calories by thinking - Quora

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Does thinking harder burn more calories? : r/askscience