Finding the truth, how many hours of sleep should we have?

It’s a very popular question for many people “How much sleep is perfect for us?” because you feel sleepy all the time no matter what you do. Although some people say they sleep early, they sleep a lot, but…Why are they still sleepy? Rest is another health factor affecting the nervous system and brain, digestive system, circulatory system, or hormonal dysfunction. So today we have some good news to share with you about how much sleep that is suitable. Let’s go check it out!