Add Yahoo as a preferred source to see more of our stories on Google. Scientists followed more than 2,750 healthy older adults (without known cognitive issues) for an average of six years, testing ...

Try side sleeping to boost your brain’s nightly cleanup—research shows it may clear Alzheimer’s-linked proteins more efficiently, a simple habit that supports long-term brain health. You’ve ...

Having trouble sleeping at night could be aging your brain prematurely, according to researchers, resulting in a higher likelihood of developing dementia. People with chronic insomnia, a condition ...

Sleep helps the brain to cleanse itself—and now this process can be measured in humans entirely noninvasively. Researchers at ...

If you’re a chronic insomniac, you might experience faster declines in memory and thinking skills than your better-sleeping fellows. In other words, your brain might age faster. In a study published ...

How does the brain clean itself during sleep? A new ultrafast MRI method tracks cerebrospinal fluid flow without contrast ...

People who have insomnia may be at much higher risk of developing dementia than people who have no trouble sleeping, a new study suggests. People who had trouble sleeping at least three nights a week ...

Chronic insomnia—trouble sleeping at least three days a week for three months or more—could speed up brain aging. People with chronic insomnia were 40% more likely to develop dementia or mild ...

Bedtime is one of the most important parts of the day for the brain. The latest studies show that when we slumber, the brain performs important housekeeping tasks that clear away the debris of the day ...

If you’ve ever muddled through the forgetful funk that follows an all-nighter, you know how skimping on sleep can zap your brain power. Scientists have long known poor sleep messes with cognitive ...