For seniors, such sleepiness could indicate that they’re at increased risk for dementia, a new study suggests. Women in their ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Whether it’s an old-fashioned, a hot toddy ...

A new study followed female participants with an average age of 83 who did not have mild cognitive impairment or dementia at the start.

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. I’m captivated by my new personal health ...

Check out these 10 things we’ve learned from years of sleep coverage. (Getty Images) ...

Study author Dr. Yue Leng, of the University of California, San Francisco, said: “Sleep is essential for cognitive health, as it allows the brain to rest and rejuvenate, enhancing our ability to ...

Sleep is essential for children, allowing their bodies to repair and grow, their immune systems to strengthen, and their brains to process and store new information. When children don't get ...