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Poor Sleep Accelerates Brain Aging, Study Reveals

10/30/2025

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Summary

Story summary

A Karolinska Institute study finds poor sleep accelerates brain aging, adding year to brain age per year of life.
Researchers analyzed over 27,500 participants to show that insomnia and snoring contribute to a higher 'real brain age' score.
The Karolinska Institute study notes that systemic inflammation and disrupted sleep raise dementia risk.
Together, the Karolinska Institute and University of Cambridge studies emphasize maintaining good sleep habits for long-term brain health.

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Story summary

A Karolinska Institute study finds poor sleep accelerates brain aging, adding year to brain age per year of life.
Researchers analyzed over 27,500 participants to show that insomnia and snoring contribute to a higher 'real brain age' score.
The Karolinska Institute study notes that systemic inflammation and disrupted sleep raise dementia risk.
Together, the Karolinska Institute and University of Cambridge studies emphasize maintaining good sleep habits for long-term brain health.