Fear of heat in summer and fear of cold in winter are generally normal physiological phenomena. If the fear of heat in summer is accompanied by flushed cheeks, dry throat, five heart-heat (the heart of the two hands and two feet are hot, and conscious of the heart and chest hot), hot flashes (a burst of heat), night sweating (abnormal sweating after going to sleep, and waking up sweating stops), short and yellow urination, red tongue and little fluids and so on, it belongs to the deficiency of yin. Symptoms such as fear of cold in winter, accompanied by cold feet and limbs, preference for hot drinks, long and clear urine, thin stools, pale face, fatigue (lack of mental energy), weakness, shortness of breath, pale tongue with white moss, etc. belong to yang deficiency. If you have any of the above discomfort symptoms, you should consult a doctor in time and be treated under the guidance of a professional physician.