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Cheng Wuji: The causes of heaviness of the body include wind-dampness, wind-cold, simultaneous presence of wind and dampness, fire-therapy adverse reaction (Huo Ni), and "Yi Bing" (a disease recurring due to sexual intercourse after recovery from a major illness). Additionally, there is the syndrome of simultaneous involvement of the three Yang meridians. Although the etiologies differ, all belong to the Three Yang meridians, unlike body ache accompanied by interior cold of the Three Yin meridians. Adverse conditions (Huai Bing) may present with body heaviness, but pure cold syndromes do not. Discerning practitioners should be vigilant in differentiation.

Taiyang Chapter:
In Cold Damage (Shanghan), if the pulse is floating and slow, the body is not painful but heavy, symptoms fluctuate in intensity, and there are no Shaoyin syndrome signs, Da Qing Long Tang (Major Blue Green Dragon Decoction) should be used to induce sweating. (See Taiyang Disease chapter).
After inducing sweating, if the body remains burning hot, this is called Wind-Warmth (Feng Wen). The pulse is floating, there is sweating, body heaviness, somnolence, and snoring nasal breathing. (See Wind-Warmth; Yi Ren Tang [Reed Rhizome Decoction] from *Liu Ren Shu* is appropriate).
If Wind-Warmth presents with a floating pulse, body heaviness, sweating, and aversion to wind, Fang Ji Huang Qi Tang [Stephania and Astragalus Decoction] is indicated.
Fang Ji (Stephaniae Tetrandrae Radix, 1 liang), Gan Cao (Glycyrrhizae Radix et Rhizoma, 0.5 liang), Bai Zhu (Atractylodis Macrocephalae Rhizoma, 7 qian 5 fen), Huang Qi (Astragali Radix, de-lumened, 1 liang 1 qian). The above herbs are coarsely crushed. Take 5 qian per dose, add 4 slices of fresh ginger (Sheng Jiang), 1 jujube (Da Zao), and 1.5 units of water. Decoct until 0.8 units remain. Take warm. Repeat after a considerable interval. After ingestion, one may feel a sensation like insects crawling under the skin. If the lower waist feels cold as ice, sit on blankets and wrap another blanket around the lower waist to induce slight sweating for recovery. If wheezing occurs, add Ma Huang (Ephedrae Herba, 0.5 liang); if stomach disharmony exists, add Shao Yao (Paeoniae Radix Alba, 3 fen); if qi rushes upward, add Gui Zhi (Cinnamomi Ramulus, 3 fen); if deep cold exists below, add Xi Xin (Asari Radix et Rhizoma, 3 fen).
If the pulse is floating, sweating therapy is indicated to release the exterior. If moxibustion/fire therapy is applied, the pathogenic factor cannot exit, and instead becomes exacerbated by fire, leading to heaviness and numbness from the waist down. This is called Fire Adverse Reaction (Huo Ni).
If the pulse is floating and rapid, recovery via sweating is expected according to standard principles. If purgation is mistakenly applied, resulting in body heaviness and palpitations, sweating therapy must not be used. Recovery will occur through spontaneous sweating. The reason is that the pulse at the cun-guan-chi position (specifically chi) is faint, indicating interior deficiency. The interior and exterior must be strengthened, and fluids harmonized naturally, leading to spontaneous sweating and recovery.
After eight or nine days of Cold Damage, if purgation is mistakenly applied, presenting with chest fullness, irritability and fright, dysuria, delirium, and whole-body heaviness preventing turning over, Chai Hu Jia Long Gu Mu Li Tang [Bupleurum Plus Dragon Bone and Oyster Shell Decoction] is the primary treatment. (Formula see Zhang Zhongjing's chapters on Fright/Palpitations).
Some physicians argue: Body heaviness preventing turning over after purgation is due to blood deficiency and failure of body fluids to nourish the exterior. Body pain preventing turning over is due to wind-dampness battling in the meridians without interior pathogens. The classic states: After eight or nine days of Cold Damage, wind-dampness battles, causing body pain, restlessness, inability to turn over spontaneously, no vomiting, no thirst, and a floating, deficient, and choppy pulse. Gui Zhi Fu Zi Tang [Cinnamon Twig and Aconite Decoction] is indicated. Here, Chai Hu Jia Long Gu Mu Li Tang is used. Although the symptom of "inability to turn over" is similar in both cases, the discussions on pain versus heaviness differ significantly; each should follow its respective standard method.

Yangming Chapter:
If the pulse is slow, there is sweating, no aversion to cold, body heaviness, shortness of breath, abdominal fullness, and wheezing, possibly with tidal fever or without, it belongs to Cheng Qi Tang [Ordering the Qi Decoction] syndrome. (See Abdominal Fullness chapter).
Yangming disease presenting with a floating-tight pulse, bitter taste in mouth, dry throat, abdominal fullness, wheezing, fever, sweating, no aversion to cold, and body heaviness, contraindicates sweating, fire needling, and purgation. (See Spontaneous Sweating note: This syndrome is suitable for harmonizing).

Simultaneous Involvement of Three Yang Chapters:
Abdominal fullness, body heaviness, difficulty turning over, oral insensibility (Kou Bu Ren) with a greasy facial appearance, delirium, and urinary incontinence. Inducing sweating worsens delirium; purgation causes sweating on the forehead and cold extremities. If there is spontaneous sweating, Bai Hu Tang [White Tiger Decoction] is the primary treatment.
Cheng Wuji commentary: Abdominal fullness, body heaviness, difficulty turning over, oral insensibility, and delirium indicate Yangming disease. *Zhen Jing* states: When Shaoyang disease is severe, the face appears dusty; this is Shaoyang. Urinary incontinence indicates Taiyang. Since Yangming symptoms predominate, it is listed in the Yangming chapter. Simultaneous involvement of Three Yang involves exterior and interior pathogens. Sweating attacks the exterior, increasing dryness-heat and worsening delirium. Purgation attacks the interior, allowing exterior heat to sink inward due to deficiency, causing forehead sweating and cold extremities. Spontaneous sweating indicates excessive heat in the Three Yang meridians. *Nei Jing* states: Heat opens pores, allows Ying and Wei to flow freely, and causes profuse sweating. Bai Hu Tang is given to resolve interior and exterior heat.

Shaoyin Chapter:
Disease presenting with abdominal pain, dysuria, heaviness and pain in the four limbs, and diarrhea, is treated with Zhen Wu Tang [True Warrior Decoction].

Zhong Yue (Heat Stroke/Miasma) Chapter:
Fever, aversion to cold, body heaviness and pain, cold extremities, fever upon slight exertion, chills and piloerection after urination, pulse that is string-like, fine, hollow, and slow, dry anterior teeth when opening the mouth. This is Taiyang Zhong Yue. Contraindicate sweating, purgation, and warm needling. (Use Bai Hu Jia Ren Shen Tang [White Tiger Plus Ginseng Decoction]; see Heat Stroke chapter).

Yin Yang Yi (Sexual Transmission/Exchange) Chapter:
Body heaviness, shortness of breath, urgency and tension in the lower abdomen, or heat drawing up from the genitalia to the chest, dizziness. This is Yin Yang Yi. Use Shao Kun San [Burnt Undergarment Powder]. (Formula theory see Yin Yang Yi chapter).