A recent study from the American Academy of Neurology warns that persistent insomnia is not just exhausting, it may permanently alter brain function. Researchers tracked more than 2,700 older adults, with an average age of 70, over approximately 5.6 years. They found that those suffering from chronic insomnia faced a significantly higher risk of mild cognitive impairment or dementia.
In this project, chronic insomnia was defined as difficulty falling or staying asleep at least three nights per week for three months or longer. One of the most alarming findings: people who reported this condition showed a 40% greater likelihood of cognitive decline compared to those without insomnia. Additionally, brain changes were detected, including the buildup of amyloid plaques and alterations in white matter, both associated with neurodegenerative diseases.
The authors emphasize that sleep quality could be a modifiable risk factor to help preserve memory and thinking skills in later life. Recommendations include improving sleep hygiene, avoiding stimulants before bedtime, and consulting professionals if difficulties persist.
Key Question: How does chronic insomnia contribute to cognitive decline, and what can be done to reduce the risk?
Chronic insomnia is linked to accelerated brain aging due to physical changes such as amyloid plaque accumulation and white matter damage, which pave the way for disorders like dementia. To mitigate these risks, experts suggest adopting healthy sleep habits: keeping consistent schedules, creating a restful sleep environment, avoiding caffeine or screens before bed, and seeking medical help for persistent issues.