Is sleeping for a long time related to health?

The more people sleep, the better? Some people often feel tired and weak, listless during the day and have no interest in anything. Is fatigue a lack of sleep or a physical illness? Recent medical research has found that many people who often feel tired are not sick or lack of sleep, but are caused by too much sleep! So, don't think that the more you sleep, the better. Why does excessive sleep affect mental and physical strength? Because the blood circulation slows down during sleep, the nutrition and oxygen supply of the brain are greatly reduced. Sleep too long, brain cells can't get enough nutrition, so the activity ability is weakened. Too much sleep will reduce the activity of muscles and tissues, and muscles will get less oxygen and nutrients from the blood, so they will become relaxed and naturally feel tired. Many people who sleep too much and feel tired can speed up their sleep, deepen their sleep and eliminate fatigue and powerlessness if they reduce some sleep time and take appropriate physical exercise. In addition, too much sleep, too long dehydration time and sticky blood can easily lead to cardiovascular diseases. Proper sleep is necessary for the human body, while too much sleep is harmful to the human body. You will feel groggy or listless after getting up. People who sleep 10 hours a day are twice as likely to die of heart disease and 3.5 times more likely to die of stroke than those who sleep only 8 hours. Sleeping too much is just like eating too much, which is harmful to health. Adequate sleep is not entirely about quantity, but more importantly, sleep quality. Some people say that the more the elderly sleep, the better, and they will live longer if they can sleep. This statement is not comprehensive. Because of different constitutions and different living habits formed over the years, we can't measure and determine the health level by sleeping more and sleeping less, as long as we are in good spirits after sleeping.