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Economy

Why studying longer can stop helping your grades

HERE’S THE INTERESTING PART

The law of diminishing returns ruins the all-nighter. Your first three hours of reading genuinely boost your grade. By hour eight, your exhausted brain retains absolutely nothing, meaning the 'marginal utility' of that final hour is functionally zero, and you just sacrificed vital sleep for absolutely no academic gain.

Why studying longer can stop helping your grades
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