Yang deficiency symptoms are mostly cold symptoms. People have a balance of yin and yang, if yang is not enough, cold and damp symptoms will come up. The specific symptoms are as follows: 1) fear of cold caused by an imbalance of the body’s external health, from the heart to the outside; 2) palpitations and palpitations, slow heartbeat, chest tightness and shortness of breath when the heart is deficient; 3) heavy phlegm and dampness when the lung is deficient; 4) cold stomach when the spleen is deficient, easy diarrhea, fear of eating cold things; 5) kidney yang deficiency is mostly a reaction to the lack of kidney yang; 6) if the heart and lung are deficient due to qi and blood circulation problems, there will be cold hands and feet, pale face and fear of cold. If you have these conditions, in addition to keeping warm, you need to warm up the body’s yang energy, and you need to invigorate the person’s own yang energy to solve the problem.