For the past week, Ms. Yang has not been able to lift her spirits, trying to sleep at night after eight o’clock, and still feeling tired during the day after 11 hours of sleep. The pressure of work made her feel sullen and irritable sometimes. During lunch that day, Ms. Yang chatted with her psychologist, and the psychologist’s words, “You’re not depressed, are you? She came to Xiangyue Hospital and was seen by Dr. Zhiyong Ni, a psychiatrist. Dr. Ni learned that Ms. Yang had no history of mental disorders and that a physical examination of her unit not long ago did not reveal any abnormalities. After the start of the school year, more and more things in school, just after the long holiday, Ms. Yang felt a bit caught off guard, while life in Ms. Yang did not encounter any stressful events, nearly a week of symptoms of energy loss, and sullenness, irritability symptoms are only a transient, and did not affect her normal life and work. During the conversation with Ms. Yang, Dr. Ni did not find typical symptoms of depression such as depressed mood, reduced speech, and slowed thinking speed. After testing some psychological scales, Dr. Ni ruled out the possibility that Ms. Yang was suffering from depression. But why did she feel tired and sleepy recently? Dr. Ni mentioned a word that we often hear: spring sleepiness. Since the beginning of spring, as the weather becomes warmer, the body’s metabolism will also become vigorous, at this time the body’s oxygen consumption increases, but the brain oxygen supply decreases, so it is easier to feel tired. In addition, the recent rainy weather in Xiamen, some people’s mood will also be affected by the low, depressed, irritable and other performance. Dr. Ni introduced that spring sleepiness is a physiological reaction, mainly fatigue, and has no significant impact on normal life and work; while depression is mainly manifested by obvious depressed mood lasting at least two weeks, which significantly affects life and work, and serious patients may have psychotic symptoms such as wood stiffness, hallucinations, delusions, and even suicidal ideas or behaviors. It is worth noting that some somatic diseases, such as hypothyroidism, liver disease and anemia, can also manifest as persistent fatigue. Regarding the relief of spring sleepiness, Dr. Ni suggests that in spring people should pay more attention to sleep health, ensure sleep time, avoid staying up late and overnight, and try not to stay in bed after waking up, deliberately sleeping more will aggravate spring sleepiness instead; go outdoors and exercise more often, breathe fresh air, choose aerobic exercises such as jogging and swimming; diet should be nutritionally balanced, mainly light and less greasy, avoid overeating, and also use some Food therapy recipes. Spring is the high incidence of mental disorders, Dr. Ni reminded that the earlier the depression is treated, the better the outcome, spring sleepiness and depression have some similar manifestations, if it is difficult to identify or have other mental disorder problems, you should seek help from a psychiatrist in time.