French writer Flaubert wrote in a letter to his girlfriend, "I work hard, take a bath every day, don't entertain guests, don't read newspapers, and watch the sunrise on time ...". It seems romantic to get up early to watch the sunrise, but I think it is best to get up early after the sun rises for a while. Getting up will definitely engage in some kind of activity, which will definitely consume more energy and breathe faster than lying still in bed. If the sun has not yet risen, the concentration of carbon dioxide in the air will be very high after a night's breathing of plants and animals, which is definitely not good for the human body. After the sun rises, the oxygen concentration in the air will increase a lot after a period of photosynthesis. It will be refreshing to get up and breathe fresh air at this time. There is a saying that morning running should be a period of time after the sun rises, which is the truth.
There is a timetable for human detoxification. 1 1:00 to 3:00 pm detoxification needs to be carried out in deep sleep. Before 3 o'clock, the human body is still detoxifying, so you must not get up before 3 o'clock (of course, no one will get up before 3 o'clock in the morning). So, there is no need to worry too much. After all, you may not even get up before 3: 00 in the morning. Instead of worrying about the harm caused by getting up early, we should pay more attention to the harm caused by staying up late.
In this era, most work and rest problems are caused by staying up late and getting up early, and there are only a few problems. Therefore, instead of worrying about the dangers of getting up early, it is better not to stay up late from today!