The internal structure of human body is very complex, including neurons and other tissues, and it will make corresponding feedback when stimulated by the outside world. However, due to various external stimuli, their corresponding stimulation sites are different, so some neurons may be disordered in the process of responding, just like the numbness of hands and feet mentioned above. In other words, it is because our neurons receive some abnormal stimulation signals from the outside world in a stable state. It leads to the confusion of some neurons connecting hands and feet in the body, leads to some wrong feedback in the body, and some sudden unconscious things will happen inadvertently.
Human nerve tissue is a huge collective, although its structure is complex, it all has its own functions, and the information transmitted to each other makes the human body have corresponding functional responses. However, if some of these organizations are disturbed, the whole work system will be affected accordingly, which will lead to some wrong feedback actions. This kind of thing happens from time to time in life, so don't worry too much.
If you want to maintain your body balance, you need to have a healthy body first, so you should exercise yourself more to make your body organs and neurons fully active, such as running in the morning, so that your nervous system can be improved accordingly. Not only the elderly need regular exercise, but young people should also pay attention to work and rest, stay up less and exercise more, so that our neurons can be in a stable state and it is not easy to have wrong feedback.