Until what time do you stay up?
First of all, let's clarify what it means to stay up late. Some people think that in order not to stay up late, you must go to bed early and get up early. Others think that it is ok to stay up late and get up late as long as you have enough sleep time. Both of these statements have some truth, but they are not comprehensive.
Good sleep includes two aspects, one is to be regular, and the other is to have enough sleep. So staying up late refers to irregular sleep, disordered cycle and insufficient sleep time. In other words, there is no clear time to fall asleep to define whether you stay up late. For example, sleeping at 10 every day and sleeping at 12 one morning can be regarded as staying up late.
Is it healthy to sleep at a fixed time every night and ensure that there are more than 7 hours? The answer is no, if the daily sleep time is 12 am, although there are certain rules, it involves the problem of "staying up late". The medical name of staying up late is "sleep phase delay syndrome". Staying up late for a long time will cause melatonin secretion disorder that controls biological rhythm, thus affecting our biological clock and threatening our health.
What's the harm of staying up late often?
Maybe you are used to the night you spent, but your body will help you remember, and maybe when you will start to take revenge and bring the following harm.
1, gene change. An American study shows that if you sleep less than 6 hours a week, more than 700 genes in your body will change.
2, eggs, sperm "premature aging". Staying up late for a long time destroys the biological clock, which in turn affects the endocrine system, causing adverse consequences such as irregular menstruation, acne, long spots, and even premature ovarian failure, leading to menopause and amenorrhea. For men, staying up late can also disturb endocrine, leading to the decline of sperm quantity and quality (poor vitality and high deformity rate).
3, the chance of getting sick is higher. As early as 20 17, three scientists who won the Nobel Prize in Physiology/Medicine warned that staying up late would directly or indirectly increase the chances of suffering from various chronic diseases, including diabetes, hypertension, cardiovascular and cerebrovascular diseases and even cancer.
In addition, many cancers are gradually becoming younger, such as breast cancer, cervical cancer and gastric cancer. Cancer, which was originally easy to get at the age of 50-80, has advanced to the age of 30-55 or even earlier, and the reasons cannot be ignored.
4, poor skin, obesity and other appearance problems. Generally speaking, people's skin will enter a maintenance state between 10 and 1 1. If you stay up late for a long time, it will cause problems such as dull and dry skin, acne and dark spots. If you not only stay up late, but also get used to eating midnight snack, it will cause loss of appetite and unbalanced nutrition over time, which will lead to obesity.
Staying up late is harmful, but it's not just talk. For your health, don't stay up late!