What is the reason for hand fighting?

There are a large number of nerves distributed on the human hands. These nerves not only connect to important organs of the human body, but also control the normal activities of the hands. If your hands are shaking, it is likely that there is a problem with the nerves in your hands, because under normal circumstances, unconscious shaking will not occur if the hands are controlled by nerves. People who often have hand tremors must understand the causes of this phenomenon in order to effectively rule out whether it is related to any disease.

There are two main types of hand tremors: 1. Essential tremor. The cause of this disease is unknown and it mainly affects the upper limbs and head. The main symptom is hand tremors when doing fine movements, such as writing, holding chopsticks, buttoning, etc. Hand tremors are more obvious when you are emotionally nervous or tired, and they are reduced or disappear completely when you relax or rest. Symptoms may be alleviated after drinking alcohol. Neurological examination showed no abnormalities except hand tremors. Currently, the most effective treatment for this disease is drug therapy. Taking medicine can improve symptoms, but they will relapse after stopping the medicine, which is the so-called "treating the symptoms but not the root cause." Essential tremor progresses very slowly or not at all and has little effect on daily life. 2. Parkinson's disease. This is a degenerative disease that occurs in the elderly. In addition to hand tremors, it is also accompanied by symptoms such as slow movements, limb stiffness, and poor balance. If not treated, symptoms will become more severe. This disease requires the help of a specialist doctor

I have answered a similar question elsewhere before, I hope it can be of some help to you. But it's a bit long, you can read some of it

Hand tremors are divided into physiological hand tremors and pathological hand tremors

Physiological hand tremors have small amplitudes and fast speeds, and often occur when the hand is stationary. They are small, fast, and irregular tremors. Physiological hand tremors often occur when one is under mental stress, fear, emotional excitement, severe pain, or extreme fatigue. Once the above causes of hand tremors are eliminated, the hand tremors will also disappear.

Pathological hand tremor, medically known as "tremor", refers to involuntary tremors of the hands, which are often permanent. There are two main types of hand tremors: static hand tremors and dynamic hand tremors. Among them, static hand tremor is the hand tremor that occurs when the muscles are completely relaxed, that is, in a quiet state. This type of hand tremor disappears during sleep, with a frequency of 4-6 times per second and a relatively regular pattern. It is a typical disease such as Parkinson's syndrome. Sports tremor is a tremor that only occurs during exercise, and the tremor becomes more severe when the movement approaches the target. For example, when a doctor performs the finger-to-nose test on a patient, he asks the patient to straighten his forearm and then point his index finger at the tip of his nose. The closer the tip of the index finger is to the tip of the nose, the more obvious the hand tremor will be. Motor tremors are irregular, with large amplitudes, and are aggravated by emotions. They are common in lesions of the cranial nerves and upper limb nerves.

Common diseases that cause pathological hand tremors clinically include upper limb nerve diseases and injuries, brain tissue diseases, and drug-induced hand tremors.

Hand tremors are common among the elderly. The constant shaking of both hands has seriously affected eating and writing, which makes the elderly very distressed. Medically, this shaking is called tremor. Although tremor manifests as shaking of the hands, the root cause is mostly in the anterior cruciate lateral lobes. Due to certain diseases, the area of ​​the anterior cruciate lateral lobes responsible for motor coordination is damaged, causing tremor.

Clinically, Parkinson's disease, cerebral arteriosclerosis, midbrain or cerebellar lesions, hepatic encephalopathy, drug poisoning, dementia, etc. may all cause hand tremors in the elderly. Medical research has found that eating broad beans and coffee can effectively control tremors. Family members can appropriately feed the elderly more of these two foods.