Generally, patients with Spleen and Kidney Yang Deficiency (deficiency of yang qi in the spleen and kidneys) will be afraid of the cold, but if the symptoms of Spleen and Kidney Yang Deficiency are mild, the fear of the cold may not be manifested. It should be noted that fear of cold is not always caused by Spleen and Kidney Yang deficiency. Clinical manifestations of Spleen and Kidney Yang Deficiency include pallor (white color and lack of luster), coldness (cold body), cold limbs, lumbar and knee soreness (feeling of soreness and weakness in the lumbar and knee areas), loose stools (thin and unformed stools) or diarrhea at five o’clock (diarrhea before dawn), or swelling of the face and limbs, and a pale, fat tongue. If the symptoms of chills are not relieved for a long time or accompanied by other discomforts, consult a doctor promptly to identify the cause and carry out targeted treatment.