Insomnia is a sleep disorder where a person has trouble falling and staying asleep. Past studies have linked insomnia to an increased risk for a number of health concerns, including cognitive decline, ...

(CNN) — Addressing insomnia isn’t just a fight against tomorrow’s midafternoon fatigue –– it could help protect against brain aging in the future, new research suggests. Sleep difficulties are common, ...

People with chronic insomnia are 40% more likely to develop dementia or mild cognitive issues, reported a new study published in Neurology. "Insomnia doesn't just affect how you feel the next day -- ...

A new study found that chronic insomnia can lead to memory loss and faster brain aging. Fortunately it’s very treatable. In a new study, older adults with chronic insomnia were 40 percent more likely ...

The sleep system that may be lowering your risk of dementia - Researchers propose that a build-up of toxins due to lost sleep ...

Inside the body, a 24-hour rhythm, known as the circadian rhythm, quietly coordinates when we sleep, wake, eat, and recover.