阳自右降，降于下而化浊阴。阴自左升，升于上而化清阳。阳根于阴。阴根于阳，是阴阳互相为根也。
而要其升降之权，总在于脾胃。一自脾气不升，则精血驰走而阴脱。《经》曰∶脱阴者目盲是也。一自胃气
不降，则神气飞腾，而阳脱。《经》曰∶脱阳者见鬼是也。如阴脱者，以乌肝汤主之。如阳脱者，以兔髓
汤主之。如虚病元阳将脱者，以参附汤主之。如少阴
气厥不至者，以地黄饮子主之。
乌肝汤
甘草（二钱） 人参（三钱） 茯苓（三钱） 桂枝（三钱） 干姜（三钱） 附子（三钱） 首乌
（三钱蒸） 芍药（三钱） 水煎大半杯，温服。
兔髓汤
甘草（二钱） 人参（三钱） 五味（一钱） 半夏（三钱） 龙骨（二钱 研） 牡蛎（三钱
研） 元参（三钱） 附子（三钱） 水煎大半杯，温服。
参附汤
人参（一两） 附子（五钱制） 水煎大半杯，温服。
地黄饮子
肉桂 附子 肉苁蓉 茯苓 熟地 麦冬 五味子 远志 菖蒲 石斛 山萸肉
巴戟肉（各一钱） 薄荷叶（四分） 水煎大半杯，温服。
阴虚盗汗。盗汗者，时常发热，睡时出汗，醒时即收也。阳虚自汗。自汗者，时常畏寒，动静皆有
汗也。然阴阳互根，又有不可泥者。盗汗亦有阳虚，自汗亦有阴虚者。如汗出喘甚，汗出脉脱，汗出
身痛，汗出发润至巅，汗出如油，汗出如珠，此六者皆不治之证也。如汗出属阴虚者，以叶氏方主之。
如汗出属阳虚者，以参附汤主之。如阴阳俱虚者，以芍药甘草附子汤主之。如肾水上泛，汗出不止，名
曰亡阳，以真武汤主之。
叶氏方
人参（二钱） 熟地（三钱） 五味（二钱） 甘草（二钱炙） 湖莲（二钱） 茯神（三钱） 水
煎
大半杯，温服。
参附汤
（方见脱证）
芍药甘草附子汤
芍药（三钱） 甘草（二钱） 附子（三钱） 水煎大半杯，温服。
真武汤（方见痰饮）
Yang Qi descends from the right, reaching the lower part to transform into turbid Yin. Yin Qi ascends from the left, reaching the upper part to transform into clear Yang. Yang is rooted in Yin, and Yin is rooted in Yang; this is the mutual rooting of Yin and Yang.
However, the authority governing their ascent and descent lies primarily in the Spleen and Stomach. On one hand, if Spleen Qi fails to ascend, essence and blood will scatter, leading to Yin Collapse (a critical syndrome of Yin fluid exhaustion). The *Classic* states: "Those with Yin Collapse go blind," which refers to this condition. On the other hand, if Stomach Qi fails to descend, Spirit Qi will fly upward, leading to Yang Collapse (a critical syndrome of Yang Qi loss). The *Classic* states: "Those with Yang Collapse see ghosts," which refers to this condition. In cases of Yin Collapse, Wu Gan Tang (Black Liver Decoction) is used as the primary treatment. In cases of Yang Collapse, Tu Sui Tang (Rabbit Marrow Decoction) is used as the primary treatment. In cases of deficiency diseases where Yuan Yang (Original Yang) is about to collapse, Shen Fu Tang (Ginseng and Aconite Decoction) is used as the primary treatment. In cases where Shaoyin (Lesser Yin) Qi is reversed and pulse Qi does not arrive, Di Huang Yin Zi (Rehmannia Drink) is used as the primary treatment.
Wu Gan Tang (Black Liver Decoction)
Gan Cao (Licorice Root, 2 qian), Ren Shen (Ginseng Root, 3 qian), Fu Ling (Poria, 3 qian), Gui Zhi (Cinnamon Twig, 3 qian), Gan Jiang (Dried Ginger, 3 qian), Fu Zi (Aconite Lateral Root, 3 qian), Shou Wu (Polygonum Multiflorum Root, 3 qian, steamed), Shao Yao (Peony Root, 3 qian). Decoct in water, take half a cup warm.
Tu Sui Tang (Rabbit Marrow Decoction)
Gan Cao (Licorice Root, 2 qian), Ren Shen (Ginseng Root, 3 qian), Wu Wei Zi (Schisandra Fruit, 1 qian), Ban Xia (Pinellia Tuber, 3 qian), Long Gu (Fossilized Bones, 2 qian, ground), Mu Li (Oyster Shell, 3 qian, ground), Xuan Shen (Scrophularia Root, 3 qian), Fu Zi (Aconite Lateral Root, 3 qian). Decoct in water, take half a cup warm.
Shen Fu Tang (Ginseng and Aconite Decoction)
Ren Shen (Ginseng Root, 1 liang), Fu Zi (Aconite Lateral Root, 5 qian, processed). Decoct in water, take half a cup warm.
Di Huang Yin Zi (Rehmannia Drink)
Rou Gui (Cinnamon Bark), Fu Zi (Aconite Lateral Root), Rou Cong Rong (Cistanche Stem), Fu Ling (Poria), Shu Di Huang (Prepared Rehmannia Root), Mai Dong (Ophiopogon Tuber), Wu Wei Zi (Schisandra Fruit), Yuan Zhi (Polygala Root), Chang Pu (Acorus Rhizome), Shi Hu (Dendrobium Stem), Shan Yu Rou (Cornus Fruit), Ba Ji Tian (Morinda Root) (each 1 qian), Bo He Ye (Mint Leaf, 4 fen). Decoct in water, take half a cup warm.
Yin Deficiency leads to Night Sweats. Night sweats refer to frequent fever, sweating during sleep, and cessation of sweating upon waking. Yang Deficiency leads to Spontaneous Sweating. Spontaneous sweating refers to frequent aversion to cold, with sweating occurring both during movement and at rest. However, since Yin and Yang are mutually rooted, one must not be rigid. Night sweats can also belong to Yang Deficiency, and spontaneous sweating can also belong to Yin Deficiency. If sweating is accompanied by severe panting, faint pulse, body pain, sweat moistening the hair up to the vertex, sweat like oil, or sweat like pearls, these six conditions are all untreatable. If sweating belongs to Yin Deficiency, Ye's Formula is used as the primary treatment. If sweating belongs to Yang Deficiency, Shen Fu Tang (Ginseng and Aconite Decoction) is used as the primary treatment. If both Yin and Yang are deficient, Shao Yao Gan Cao Fu Zi Tang (Peony, Licorice, and Aconite Decoction) is used as the primary treatment. If Kidney Water floats upward and sweating continues incessantly, it is called Yang Collapse (Loss of Yang), and Zhen Wu Tang (True Warrior Decoction) is used as the primary treatment.
Ye's Formula
Ren Shen (Ginseng Root, 2 qian), Shu Di Huang (Prepared Rehmannia Root, 3 qian), Wu Wei Zi (Schisandra Fruit, 2 qian), Gan Cao (Licorice Root, 2 qian, honey-fried), Hu Lian (Lotus Seed, 2 qian), Fu Shen (Poria with Hostwood, 3 qian). Decoct in water, take half a cup warm.
Shen Fu Tang (Ginseng and Aconite Decoction)
(See formula in "Collapse Syndrome" section)
Shao Yao Gan Cao Fu Zi Tang (Peony, Licorice, and Aconite Decoction)
Shao Yao (Peony Root, 3 qian), Gan Cao (Licorice Root, 2 qian), Fu Zi (Aconite Lateral Root, 3 qian). Decoct in water, take half a cup warm.
Zhen Wu Tang (True Warrior Decoction)
(See formula in "Phlegm-Fluids" section)