Sleep paralysis is a condition in which you feel conscious but unable to move for a very short period of time (about 1-2 minutes) as you fall asleep or wake up. For most people, sleep paralysis is a normal condition that does not occur frequently enough to cause serious health problems.

Daytime sleepiness makes you lack concentration at work or study. That significantly affects work performance, as well as study results. How to limit the situation of daytime sleepiness is something you care about, then try the 12 ways below that can help you improve.

There are big differences between your sleep when you’re young and when you’re middle-aged. Nearly half of men and women over age 65 say they have at least one sleep problem. But overall, older people’s sleep is more disrupted than younger people’s.