The result of recent research has shown that grapes contain melatonin. Therefore, some believe that eating grapes before going to bed will help you sleep better. So, is this really true?

Sleep is an important physiological activity that reflects a person's health status and is a biological indicator that takes up an average of about 1/3 of the day. At different ages, the amount of sleep needed each day is also different. Accordingly, how much sleep is enough for a 40-year-old is a matter of concern to many people.