In modern society, people lack of sleep has become a common phenomenon. According to our health authority statistics, 84% of urban residents in China can not guarantee normal sleep.  32% of people are suffering from sleep disease. People often say that good sleep can make the day's work doubled efficiency and face looks ruddy. Here we take a look at what is the benefit of sleep. 6 benefits you should know about better sleep. Qing Dynasty writer Li Yu said: "health tactics with sleep."  Shakespeare also said "sleep is the source of all energy, it is the patient's elixir."  The ancients have such a clear understanding of sleep.  In the pace of modern life , it is extremely compact, but people do not pay attention to sleep. [...]