Insomnia Raises Dementia Risk in Healthy Older Adults, Study Says

Chronic insomnia may increase dementia risk, study finds

People who have trouble sleeping may be at higher risk for dementia, study shows

People with chronic insomnia are 40% more likely to develop dementia than people without insomnia, according to a study published in the journal Neurology.

Addressing your insomnia now could protect against dementia later, study says

Insomnia is a common problem that doesn’t always get taken seriously enough. But your tossing and turning could be linked to brain aging, new research shows.

Chronic insomnia linked to faster cognitive decline and brain changes

People with chronic insomnia may experience faster declines in memory and thinking skills as they age-along with brain changes that can be seen on imaging scans-than people who do not have chronic insomnia, according to a study published in the September 10, 2025, issue of Neurology, the medical journal of the American Academy of Neurology.

Having Insomnia Can Age Your Brain By Years, a New Study Shows

Research in nearly 3,000 older people found that those with chronic insomnia experienced faster brain aging and greater risk for dementia.

Can't sleep? Insomniacs may experience accelerated brain aging

People with chronic insomnia may experience faster declines in memory and thinking skills as they age—along with brain changes that can be seen on imaging scans—than people who do not have chronic insomnia, according to a study published in Neurology.