What is the cause of insomnia in the middle of the night and how to improve it?

What are the causes of insomnia in the middle of the night recently and how to improve it? In fact, there are many factors that lead to insomnia, such as frequent night shifts and drinking coffee and tea before going to bed, which will have an impact on sleep. In addition, when we are stressed, various hormones in the body will also affect the secretion of various hormones in the body, including melatonin. When the level of this substance drops, it will affect sleep. Therefore, if you want to improve insomnia, you must develop good living habits and supplement some melatonin appropriately. The main function of melatonin is to regulate the sleep quality of human body. Take Tomson Bianjian melatonin tablets, which I often eat, as an example. Each tablet contains 2.25mg of melatonin and 3.5mg of vitamin B6. Melatonin tablets directly improve sleep, VB6 regulates neurotransmitters, promotes the synthesis of melatonin and GABA in human body, and plays a role in calming the nerves. After eating for a while, the quality of sleep is really much better. Friends in need can learn about it.