Here’s why sufficient sleep matters, how much you really need and some evidence-based support for better rest.

Eat a balanced diet. You get lots of essential nutrients — like fiber and magnesium — from food. They can help support overall health, including energy levels and sleep. Focus on nutrient-rich whole ...

Deep sleep, like all sleep stages, helps you feel refreshed when you wake up. The proportion of time you need to spend in ...

Q: Do older adults need the same amount of sleep as younger adults? How does aging affect one's sleep? A: The need for sleep stays fairly constant over the course of a person's lifespan. Unlike ...

Is 10 PM the ideal time? Not necessarily. Although a British study indicated that 10 PM might be the ideal time, Dr. Lance ...

A deep slumber might help buffer against memory loss for older adults facing a heightened burden of Alzheimer’s disease, new research from the University of California, Berkeley, suggests. Deep sleep, ...

Losing as little as 1% of deep sleep each year has been linked to a 27% increase in dementia risk, results of a retrospective cohort study show. Researchers suggest that prioritizing deep sleep — also ...

A study from the American Heart Association and Brigham and Women’s Hospital finds that sleep patterns vary by state, with ...

Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge.

Uncontrolled sleep apnea — a disorder in which people stop breathing for 10 seconds or more at a time multiple times a night — may harm future brain health, a new study found.Video above: Poor sleep ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...