Optimum Youth Research Team

The Optimum Youth Research Team curates and explains peer-reviewed studies on sleep, brain aging, metabolism, and evidence-based supplement strategies. Every Research Brief translates complex science into practical insights for long-term health and cognitive resilience.

Chronic Insomnia Linked to Faster Brain Aging and Higher Dementia Risk, Large Study Finds

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Medical image showing white-matter changes linked to insomnia and cognitive decline.”

New research shows that chronic insomnia does far more than drain your energy—it may accelerate brain aging. A large study of older adults found that long-term sleep disruption is linked to faster cognitive decline, higher amyloid buildup, and more small-vessel brain damage, with risks similar to those seen in APOE4 carriers.