What are the symptoms of Parkinson's syndrome?

Parkinson's syndrome has four main symptoms. It is a dyskinesia disease. The first core symptom is slow movement and slow walking. Some patients may walk a little. There are three supporting symptoms. One is resting tremor, which is easy to show when resting. In addition, there can be postural gait abnormalities, a disturbance of postural balance, and muscle rigidity, such as when moving, you can find that especially the upper limbs tend to show lead tube or gear-like muscle tension, which is generally the four major symptoms, in addition to non-motor symptoms, which are characterized by decreased smell, sleep disorders, and emotional changes and cognitive changes.