Chest tightness is a subjective feeling of straining to breathe or not having enough breath. In mild cases, it is nothing, but in severe cases, it feels uncomfortable, as if a stone is pressing on the chest, and even difficulty in breathing. It may be a functional manifestation of the body’s organs, or it may be one of the earliest symptoms of a disease occurring in the body. The causes of chest tightness are different for people of different ages, and so are the treatment and consequences. There are three causes of chest tightness: 1. Physiological factors Women begin to develop and mature their reproductive systems, such as the ovaries, from puberty, and secrete estrogen, which promotes the onset of menstruation by month and the formation of obvious female sexual characteristics. Chest tightness and shortness of breath have a lot to do with the level of sex hormone secretion. The secretion of estrogen in young women’s bodies is strong, the subcutaneous fat thickens, and the oxygen consumption of adipose tissue is more than that of muscle tissue, so young women will lead to insufficient oxygen supply to the body and chest tightness and shortness of breath. 2, psychological factors Mainly caused by depression, mood discomfort and other unpleasant emotions. Girls tend to be delicate emotions, easy to sulk when they encounter unhappy things, emotional discomfort, often making them feel short of breath. According to psychologists, this cause of shortness of breath is the most common. It seems that everything has to be thought of; do not be too bull-headed. 3, pathological factors common diseases of myocarditis and vegetative dysfunction in women. In a variety of myocarditis, especially viral myocarditis is the most common. Women are susceptible to complications of viral myocarditis after suffering from colds and upper whistle infection diseases. One of the main symptoms of this disease is chest tightness and shortness of breath.