How Many Calories Does Flash Burn? Clarifying the Misconception
                                
                                
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                                    4 min read                                
                            
                                While the query sounds like a superhero-related riddle, a flash of light, even one intense enough to cause a medical 'flash burn' like from welding, does not burn calories in the human body. Calories are units of energy from food, metabolized by the body for biological processes, not consumed by external light exposure.