Sleeplessness at night, also known as difficulty falling asleep, is a manifestation of insomnia and the most common sleep disorder. Long-term sleep disorders will lead to the human brain and organs do not get normal rest, seriously affecting health. The common causes of insomnia are as follows: 1, family genetic factors: the incidence of insomnia in people with a family history of insomnia is three times that of people without a family history; 2, stress and life events: sleep environment changes or learning, life, work stress leads to mental tension, emotional instability or impatience; 3, lifestyle problems: sleeping in the wrong position, drinking a lot of coffee and tea during the day, too full or in a state of hunger before going to bed, lying in bed during the day 4, self-characteristic personality: perfectionists, introverted personality or anxiety characteristics, etc.; 5, physical factors: certain medical diseases and mental illnesses, such as Parkinson’s disease, peripheral neuropathy and depression, but also some long-term use of hormones, stimulant drugs; 6, physiological factors: ageing is an important risk factor for insomnia, adult women with the gradual increase in age The adult women have a gradually higher incidence of insomnia with increasing age, while there is no gender distribution difference in childhood. In summary, sleeplessness at night is the clinical manifestation of a variety of complex factors, including physiological, psychological, environmental, spiritual and other factors of change. Long-term insomnia has the potential to induce hypertension, coronary heart disease, cerebrovascular disease and other diseases, and should be adjusted early.