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Sleep Problems Linked to Advanced Brain Age, Study Finds

10/5/2025

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Summary

Story summary

Researchers from Karolinska Institutet in Sweden found a link between sleep problems and advanced brain age.
The study analyzed data from 27,000 United Kingdom (UK) adults, averaging 55 years.
Sleep patterns, via questionnaires, were categorized as healthy (41%), intermediate (56%), or poor (3%).
In 2020, 14.5% reported sleep difficulties, linked to mood changes, higher heart-attack risk, and immune-system inflammation.

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Story summary

Researchers from Karolinska Institutet in Sweden found a link between sleep problems and advanced brain age.
The study analyzed data from 27,000 United Kingdom (UK) adults, averaging 55 years.
Sleep patterns, via questionnaires, were categorized as healthy (41%), intermediate (56%), or poor (3%).
In 2020, 14.5% reported sleep difficulties, linked to mood changes, higher heart-attack risk, and immune-system inflammation.