Yesterday afternoon, the last day of 2015, the last patient seen was a referral from our respiratory unit. It was a girl, 18 years old, sophomore in high school, looking more mature than her actual age and quite beautiful. Three years ago, in her junior year, she had episodes of dyspnea, feeling out of breath, tightness and lack of breath. It can be triggered by strenuous exercise or playing too excitedly, and it can also be triggered by lying down, but it is better when sitting up, and it affects sleep. Sometimes it is accompanied by pain and discomfort in the right upper abdomen, and sometimes it is the pain in the right upper abdomen that triggers dyspnea. The patient said, “Sometimes you see that I am calm, but I have dyspnea, I feel that I don’t have enough air, my chest is tight and hard. 3 years, I have been examined and treated at the local hospital, but it is not effective. Today, I came to see our respiratory department. After detailed examination, the specialist of respiratory department thought it was not a disease of their department and referred the patient to see my clinic. The patient’s father said that the respiratory doctor at the local hospital had also told them to see the psychiatry department, but never did. After completing the relevant tests in my department, the initial diagnosis was dysthymia, also a somatoform disorder, which is an anxiety disorder. I asked the patient, “Do you have any siblings?” She said; “There is a younger brother.” I asked, “How much younger are you?” She said, “A little over 2 years old.” I asked, “More than 2 years younger than you?” She said, “No, my brother is just over 2 years old.” I asked, “So much younger, do you like your brother?” She said, “Yes.” Similarly, we often encounter such cases where the oldest and the youngest are far apart in age and the mother has psychological problems with the oldest during or around the time of pregnancy. With the official implementation of the national two-child policy this year, there will be a large number of such phenomena where the oldest and the youngest are far apart, how to take care of the oldest’s mental health? Parents who are planning to have a second child should pay attention. For those parents who are troubled and don’t know what to do, it is a wise choice to come to the hospital for timely consultation.