Recent research shows that prolonged tension will weaken the body’s ability to resist germs, making it easy to catch a cold, the formation of the so-called cold body. British scientists at the Salisbury Cold and Flu Research Institute isolated 394 voluntary test subjects from the outside world for nine days, and on the second day, they put a few drops of colorless, transparent liquid into the noses of the test subjects. They were examined every day in order to record coughing, wheezing and runny noses, and most of the infections could be known early by blood tests, which showed the same results as the psychological tests done on the subjects before the quarantine. This shows that the higher the level of tension, the greater the possibility of the cold virus will play a role in the study results show that 47% of the participants in the test due to their heightened state of tension and illness, while the non-stressed people only 25% of the disease. 1, wind-cold cold: wind-cold cold is caused by the wind blowing cold and cold, fall and winter occur more. Its symptoms are body aches, nasal congestion and runny nose, cough and phlegm. Western medicine and Chinese medicine can be used for treatment, and dietary therapy can also be used, not only to get rid of the disease, but also for health care. Preventive measures are to pay attention to warmth, strengthen physical exercise, improve immunity, can also be in advance of the vaccine. 2. Wind-heat cold: Wind-heat cold is caused by the wind-heat evil that offends the surface and the loss of harmony in the lungs. Symptoms include heavy fever, slight wind, headache, sweating, sore throat, cough, sticky or yellow sputum, nasal congestion, yellow snot, thirst and drink, red tongue, thin white and yellow moss. Wind-heat colds are mostly seen in summer and fall, caused by external wind-heat. According to Chinese medicine, wind-heat cold is a symptom caused by wind-heat. 3, influenza: influenza (influenza. referred to as influenza) is caused by influenza virus acute respiratory infectious diseases, the pathogen for the A, B, C type three influenza virus, through the droplet transmission, clinically there is a rapid onset of high fever, malaise, generalized muscle aches and pains and mild respiratory symptoms, the course of the disease is short, self-limited, the middle-aged people and with chronic respiratory disease or cardiac disease patients are prone to complication. Pneumonia. Influenza in the epidemiology of the most significant features: sudden outbreak, rapid spread, widespread, with a certain seasonality (the epidemic in the northern part of our country generally occur in winter, while the southern part of the more occurred in the summer and winter.