Warmth in the center of the feet when sleeping at night and fear of cold during the day is usually a manifestation of deficiency of yin and yang in the organism.
“Su Wen – regulating menstruation,” said: “Yang deficiency is external cold, Yin deficiency is internal heat.” During the day, Wei Yang (yang qi on the surface of the muscle) travels on the surface of the muscle, Wei Yang is not enough to give full play to its role in warming the surface of the muscle, so the daytime feel cold, accompanied by warm limbs, limb fatigue, urination, stool dilution and other symptoms of cold deficiency.
At night, Wei Yang should return to the inside, but because of the body’s lack of yin qi, yin does not converge yang, resulting in the external float of the deficiency yang, so the night to sleep on the heart of the feet, accompanied by hot flashes (a burst of heat) night sweating (abnormal sweating after going to sleep, waking up sweating to stop), limb emaciation, dry mouth, nose, and throat, red tongue with little moss, pulse (pulse becomes narrower and finer and the rate of accelerated), such as the symptoms of deficiency heat.
If the above symptoms occur, it is recommended to consult a doctor in a timely manner for treatment under the guidance of a professional physician.