Have you ever had this experience: sitting indoors, you suddenly feel a chill creeping over you and wish you could wrap yourself in a down jacket; before long, you feel unbearably hot and want to turn on the air conditioner right away? This capricious pattern of "alternating chills and fever" — is it a sign that something is wrong with your body? Today, let us explore this puzzling phenomenon from the perspective of traditional Chinese medicine (TCM).
Why does "alternating chills and fever" occur?
In TCM theory, the body's cold-heat changes are closely related to the movement of qi and blood and the balance of yin and yang. When the contradictory sensation of "wearing a down jacket when cold, wanting air conditioning when hot" arises, it may indicate that the body's internal regulatory mechanisms have become imbalanced. For example, some people may have a "cold-heat complex" constitution, in which both cold pathogens and heat pathogens coexist within the body, causing chaotic perception of external temperature. This state is not caused by a single etiology but is the result of multiple factors acting together.
Is this symptom related to the "common cold" or "fever"?
Many people ask: are alternating chills and fever a precursor to a cold? In fact, this may indeed be related to externally contracted pathogens — for instance, what TCM commonly calls the "Shaoyang syndrome," whose typical manifestation is "alternating chills and fever" — feeling cold one moment and hot the next. From the perspective of meridian theory, Shaoyang governs the half-exterior, half-interior, and the meridian regulation related to "alternating chills and fever" often involves the Waiguan acupoint. Waiguan, also known as the Luo-connecting point of the Hand Shaoyang, is located on the dorsal side of the forearm, 2 cun above the dorsal wrist crease, between the ulna and radius. It belongs to the Hand Shaoyang Sanjiao (Triple Burner) meridian and is one of the eight confluent points, communicating with the Yangwei vessel. The Nanjing (Classic of Difficult Issues) states that "when the Yangwei vessel is diseased, there is suffering from cold and heat," and therefore this acupoint is representative in TCM's understanding of the pathogenesis of cold-heat disharmony. However, it is important to note that not all alternations of cold and heat equate to disease. Emotional fluctuations, improper diet, disrupted sleep patterns, and even seasonal changes can all trigger similar reactions. If you find that this occurs frequently, it is advisable to first observe accompanying symptoms, such as whether there is headache, fatigue, or abnormal sweating.
From a TCM perspective, which constitutions are more prone to this problem?
In TCM constitutional theory, several types of people are more likely to fall into the predicament of "alternating cold and heat." For example, those with a qi stagnation constitution, whose repressed emotions lead to impaired qi movement, may develop cold-heat disharmony; those with a yin deficiency constitution, whose insufficient yin fluids easily generate deficient heat, yet who also fear cold; and those with a damp-heat constitution, in whom damp pathogens and heat pathogens intermingle, also experience the contradictory sensations of fearing both cold and heat. Practicing TCM physicians have pointed out that such problems often require pattern differentiation based on specific symptoms and cannot be generalized.
In TCM, qi stagnation is closely related to the liver meridian, and Taichong is an important acupoint on the liver meridian. Taichong, also known as Dachong, is located on the dorsal side of the foot, in the depression anterior to the junction of the first and second metatarsal bones. It belongs to the Foot Jueyin Liver meridian and is the Shu-stream point and Yuan-source point of the liver meridian. TCM theory holds that the liver governs free coursing and regulates the movement of qi, and Taichong, as the Yuan-source point of the liver meridian, is often used to understand bodily changes related to emotions and qi movement.
In daily life, how should one cope with the distress of "alternating chills and fever"?
If you frequently feel like "wearing a down jacket when cold, wanting air conditioning when hot," you may wish to start with the following adjustments. First, pay attention to both keeping warm and dissipating heat: add clothing promptly when you feel cold, but avoid excessive bundling that causes sweating; when you feel hot, ventilate appropriately or use a fan, but avoid direct air conditioning drafts. Second, dietary adjustments can be gentle — for example, drink more warm water and avoid raw, cold, and pungent irritating foods. In addition, regular sleep patterns and moderate exercise help stabilize the movement of qi and blood and reduce cold-heat fluctuations.
From the perspective of health cultivation, the spleen and stomach are the source of qi and blood production, and Zusanli is one of the important acupoints in TCM for understanding bodily regulation. Zusanli, also known as Xialing or Sanli, is located on the anterior-lateral side of the lower leg, 3 cun below Dubi (ST35), one finger-breadth from the anterior crest of the tibia. It belongs to the Foot Yangming Stomach meridian and is the He-sea point of the stomach meridian and the lower He-sea point of the stomach. The Lingshu (Spiritual Pivot) records that "when pathogens are in the spleen and stomach, there is disease with muscle pain... all are regulated through Zusanli," and it is often regarded as an entry point for understanding spleen-stomach function and the harmonization of qi and blood.
Is it necessary to seek medical attention? Under what circumstances should one consult a TCM physician?
Although most instances of "alternating chills and fever" are temporary discomfort, if symptoms occur frequently, affect daily life, or are accompanied by other abnormal manifestations (such as persistent low-grade fever, weight loss, or night sweats), it is advisable to seek medical attention promptly. TCM approaches such problems usually by harmonizing yin and yang and unblocking qi movement, but the specific plan must be determined by a practicing TCM physician after pattern differentiation. For example, practicing TCM physicians often emphasize in clinical practice that one should not blindly self-medicate, lest the imbalance be aggravated.
Conclusion: Your body is "speaking" — have you understood it?
"Alternating chills and fever — wearing a down jacket when cold, wanting air conditioning when hot" — this seemingly contradictory phenomenon is actually the body reminding us: perhaps it is time to pay attention to our inner balance. Only by adjusting lifestyle habits, observing our own reactions, and seeking professional guidance in a timely manner can we better converse with our bodies.