In daily life, we often see some elderly people’s hands, head or lower limbs involuntarily trembling or swinging back and forth, either fast or slow to varying degrees, which has a certain impact on their daily lives. When encountering this situation, many people think that they are suffering from Parkinson’s disease. In fact, most of the limb tremors are caused by physiological and mental factors, and only a few of them are really caused by the disease. In normal people, tremor movements exist in the limbs, head, tongue, and trunk. When young, this tremor is fast and subtle and not easily detectable, and as we age, the amplitude of the tremor increases and the frequency slows down, especially when it is more pronounced in certain postures. The impact of this physiological tremor on daily life is usually small. It may worsen to irregular, swaying tremors when frightened, anxious, angry, insomnia, heavy alcohol consumption or certain medications are taken. Older adults should not be overly nervous about these physiological, functional tremors; the more nervous they are, the more the tremors intensify. Older people should avoid the influence of mental factors, be calm, pay attention to rest, drink less alcohol and tea, so that the impact of tremor on daily life will be reduced to a minimum. However, there are some elderly people who have tremors caused by diseases, mainly Parkinson’s disease. It is characterized by rhythmic tremor of the limbs 4 to 6 times per second, mainly when the limbs are at rest, starting with the hands and later involving other limbs. In addition, patients often feel tightness and inflexibility in their limbs, and later find it difficult and slow to speak, eat, write, dress, stand, walk, turn, etc. It is very difficult to start a certain movement, and once started, it is difficult to stop, and as the disease progresses, the ability to take care of oneself becomes worse and worse. The early manifestations of this disease are easily confused with other diseases, but experienced specialists can diagnose it through careful examination. In China, especially in the northern region, the incidence of cerebrovascular disease in the elderly is high, and there are few patients with Parkinson’s syndrome secondary to cerebrovascular disease that destroys specific brain tissue. From a preventive point of view, avoiding cerebrovascular disease, encephalitis or avoiding exposure to certain environmental toxins and maintaining a good lifestyle are not less effective. If there is a more severe tremor or a change in the original form of tremor, the first thing to do is to go to a neurologist for an examination. If the diagnosis cannot be confirmed for a while, regular examinations should be conducted, and drugs can be taken if the diagnosis is clearly Parkinson’s disease or Parkinson’s syndrome. As long as the scientific use of drugs, you can maximize the control of symptoms, so that elderly patients can maintain a certain ability to live.