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Does fasting harm cognitive performance?

Healthcare
Global
Iniciado June 26, 2026

More than 2 billion people participate annually in Ramadan fasting, making its potential effects on cognitive performance important for workplaces, education and high-stakes decision-making. We study these effects in tournament chess, an incentivised, real-world cognitive task in which move quality can be evaluated objectively by a strong chess engine. We analyse nearly 300,000 games and more […] The post Does fasting harm cognitive performance? appeared first on Marginal REVOLUTION. Comments...

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CLAIM Publicado por will • Jun 26, 2026
The effects of fasting on cognitive performance may vary greatly among individuals, making it essential to consider personal experiences and needs in discussions.

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CLAIM Publicado por will • Jun 26, 2026
The cognitive decline observed in fasting individuals, especially in competitive activities like chess, suggests that fasting can harm decision-making abilities.

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CLAIM Publicado por will • Jun 26, 2026
The potential negative impact of fasting on cognitive tasks like chess indicates a need for policy adjustments in workplaces and schools during Ramadan.

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CLAIM Publicado por will • Jun 26, 2026
Fasting during Ramadan can enhance cognitive performance by promoting discipline and mental clarity, which are crucial in high-stakes environments.

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CLAIM Publicado por will • Jun 26, 2026
Fasting could lead to improved focus and concentration in the long run, as the body adapts to new routines and challenges during Ramadan.

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