A recent study of sleep lab volunteers reveals that caffeine impairs essential brain functions at night. Here’s what happens. Stacey Leasca is an award-winning journalist with nearly two decades of ...

(CNN) — Loss of slow-wave sleep as you age may increase your risk of developing dementia, according to a new study. (CNN) — Loss of slow-wave sleep as you age may increase your risk of developing ...

Coffee has long been a staple in American life. It’s what we get up to in the morning, and when we need a pick-me-up in the afternoon. It is a tasty, toasted vehicle for delivering the caffeine we ...

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, ...

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(CNN) — Loss of slow-wave sleep as you age may increase your risk of developing dementia, according to a new study. “We found that aging was associated with a decline in the amount of the deepest ...