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flag A major study finds fasting up to 12 hours doesn’t harm adults’ memory, decision-making, or reaction time.

flag A large study by the American Psychological Association analyzing 71 studies and 3,484 adults finds no consistent evidence that skipping breakfast or fasting for up to 12 hours impairs memory, decision-making, or reaction speed in most adults. flag Cognitive performance remained stable during fasting, challenging the common belief that hunger harms mental sharpness. flag While some minor declines were seen in children and in food-related tasks, overall mental function in adults was unaffected. flag Fasting may offer health benefits by shifting the body to use ketones for energy, supporting cellular repair and longevity.

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