Stop snacking. Restricting eating for only 8 or 9 hours a day may keep your mind sharp.

A study found that restricting eating to an 8 or 9 hour window daily was associated with cognitive improvements in participants. The research examined the relationship between eating duration and mental function but did not establish whether the eating restriction caused the cognitive changes. The study's methodology, sample size, and peer review status were not specified in the available information.

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