It can vary depending on your sleeping pattern and schedule, but generally, the worst time to nap is during the late ...

None of them had mild cognitive impairment or dementia at the start of the study. Over the course of the study period, 22% of ...

"Sleep is essential for cognitive health, as it allows the brain to rest and rejuvenate," said neurologist Yue Leng.

Grabbing 40 winks during the day is a common habit. In fact "nana naps" have become so popular they have even got their own ...