Apart from physiological reasons (e.g. being in an air-conditioned room with a low temperature), the causes of coldness in the chest and back may be yang deficiency, deficiency of qi and blood, etc. There are many specific reasons for this, so it is advisable to consult a doctor.
Coldness in the chest and back caused by yang deficiency is often accompanied by a pale or grayish-black color, fear of cold, low temperature of the hands and feet, mental fatigue, swelling, prolonged diarrhea, and a large amount of undigested food in the stool, and other symptoms.
Coldness in the chest and back caused by insufficient qi and blood is often accompanied by poor mental health, fatigue, chest tightness and shortness of breath, lack of strength to speak, dizziness, heartburn, insomnia and other symptoms.
If the symptoms of cold chest and back are not relieved for a long time or accompanied by other discomforts, you should consult a doctor in time to find out the cause and carry out targeted treatment.