Insufficient sleep has its consequences, same as taking naps. Anecdotally, we know that when we are sleepy we are tired and irritable.
But studies show that this effect is cumulative over time. How much time will you need to recover from poor sleep depends on how long you lasted the period of sleep deprivation.
If you go to bed late at night and get up early in the morning, you need one or two good longer sleeps than usual in order to recover your body. Years of poor sleep can negatively affect your brain.
What do you think about people who feel rested with only several hours of sleep? In time, everyone is getting used to sleeping less, but when it comes to people who sleep very little – they actually lose their sense of fatigue.
Sleep should not be longer than seven to eight hours. People who sleep less than seven hours are more at risk of heart disease, obesity and diabetes. But sleeping more than eight hours does have its health risks as well. Find out more watching the video above from AsapSCIENCE.