Weeping and laughing disorder is a condition in which the patient himself cannot control his emotions, sometimes laughing and sometimes howling, and is unpredictable. This disease may be due to problems in the brain and can be treated in the neurology and psychiatry departments of hospitals. The cause of crying and laughing disorder is mainly a disorder of brain function, abnormal mental activity, and may also be due to the effect of certain stimulants. To prevent crying and laughing disorder, we should pay attention to mental health, create good environmental conditions, cultivate a strong and balanced character and good habits of life. Active prevention and timely treatment of somatic diseases. Practice eugenics and eliminate inbreeding, etc. 1, from childhood to cultivate education, so that children develop a cheerful character, optimism, loyalty and honesty, civilized, polite, reasonable temperament. Do not overindulge, to children constantly overcome the timid capricious, selfish, competitive bad personality, in order to enhance the ability to adapt to the social environment. 2, in will life, to correctly deal with learning, work, love, marriage, family and neighborly relations, encounter problems correctly, calmly deal with, not emotional, encounter difficult to solve or can not figure out the conflict, can find leaders, friends or relatives to help, for the proper resolution of conflicts, timely relief of bitterness, as soon as possible to eliminate worries, do not encounter things to think hard, do not spend the whole day worrying. To not regret, not jealous, think high, look far, so as not to suffer mental trauma. 3, after work, more study of scientific and cultural knowledge, break the feudal superstition, strengthen the study of political and current affairs, and constantly improve political and ideological awareness, establish a correct outlook on life, and develop a new socialist style of “five words, four beauties and three loves”. Appropriate participation in cultural and sports activities, quit smoking and alcohol and other bad habits. Do not gamble, do not listen to pornographic songs, do not read pornographic novels, obey the law, and strive to become a person who can contribute to the construction of the four. This will make you feel comfortable, broad-minded, and enhance the immunity of the body and spirit.