Feeling sleepy and less enthusiastic during the day may indicate a higher risk of developing a syndrome that often leads to dementia, a new study has found.

Older adults who reported excessive daytime sleepiness and a lack of enthusiasm were more likely to develop a condition that increases the risk of dementia.

A study involving older people found that sleep problems were associated with a higher risk of developing a predementia syndrome.

If you've been looking for a sign to work on your sleep hygiene, this is it. A new study suggests that a particular wave of sleep, called slow-wave sleep, plays an integral role in staving off dementia.