The causes of laughter are mostly caused by mental illness, and when there are inducing factors, it will stimulate the situation that leads to laughter. At the same time, such as smoking, schizophrenia or hysteria patients, may be caused by the bad stimulation of psychological factors. If you can treat it in time and do a good job of psychological counseling, you will soon return to normal.

The symptoms of laughter can be examined as follows:

1, EEG examination: EEG activity is the basis of brain physiological function. The application of EEG is not limited to nervous system diseases, but has been widely used in the monitoring, anesthesia monitoring and psychological behavior research of critically ill patients in various departments. In addition to routine EEG examination, there are long-term EEG monitoring, video EEG monitoring, sleep monitoring and digital computer analysis.

2. Brain magnetic resonance examination: Brain magnetic resonance examination is a magnetic resonance examination of the brain, which is used to observe whether the brain has lesions and can determine whether the patient is caused by brain structural changes. Intracranial tumors often cause epilepsy. MRI has a very high diagnostic rate for low-grade astrocytoma, ganglion, glioma, arteriovenous malformation and hematoma in the brain.