Wake up your muscles. It is your dreams that wake you up every day, and stretching your muscles. When we sleep, our muscles are resting. So get up in the morning and stretch your muscles. Stretching rejuvenates muscles and tells them it's time to start. In this process, it can also relieve the pain of the body and relax the tight and stiff muscles. At work, it will be much more comfortable to sit for a long time. Promote blood circulation. Most people keep a certain posture when they sleep. Under the influence of gravity, more blood will flow to the back or side; At work, blood will flow more to the lower limbs, and the supply of other parts will be reduced accordingly. When stretching, most people will raise their arms and tilt their heads backwards, which will speed up blood circulation and more blood will flow to the limbs. Especially with more blood supply to the brain, people will be more awake and their IQ will reach a new height.
In order to stimulate sympathetic nerve, sympathetic nerve and parasympathetic nerve are distributed in human spine. They form the autonomic nervous system, and most organs are dominated and regulated by it. However, their regulatory direction is often just the opposite. For example, sympathetic nerves can dilate pupils, while parasympathetic nerves can contract pupils. When we stretch, it will stimulate the sympathetic nerve, which is responsible for mobilizing the body's resources to cope with the stress in the environment. When the sympathetic nerve starts to work, it will release a certain amount of adrenal hormones, which will make people feel excited and happy, and the heart rate will also increase, which is equivalent to injecting chicken blood into themselves. Help breathing and promote metabolism. The influence of oxygen on human body is self-evident. The higher the oxygen content in the blood, the better the metabolism of the body. On the other hand, if the blood oxygen is insufficient, there will be symptoms such as asthma and fatigue, which will make the whole person weak. Brain hypoxia is more obvious. There will be slight mental retardation and unresponsiveness, as well as more serious symptoms such as headache and dizziness.