Can better sleep help prevent or delay neurodegenerative diseases? Millions suffer from dementia worldwide, yet the relationship between sleep disturbances and cognitive decline remains complex.
In a recent review published in the journal Neuron, Washington University scientists explored whether disrupted sleep contributes to neurodegeneration, serves as an early symptom, or both. By understanding sleep’s protective mechanisms, they aimed to uncover ways to enhance brain health and resilience.
Sleep and brain health
Sleep restores brain function, consolidates memory, and removes toxic waste. However, as people age, sleep duration shortens, sleep becomes more fragmented, and deep sleep decreases—changes linked to cognitive decline and increased risk of neurodegenerative diseases.
