头为诸阳之首，病患头晕，清阳不升也。头重不能抬起，阳虚不能撑持也。
头晕有肾虚而阳无所附者，有血虚火升者，有脾虚生痰者，有寒凉伤其中气，不能升发
，故上焦元气虚而晕者，有肺虚肝木无制而晕者。
中气虚则脾不运化，以致生痰上逆而头晕者，四君子加半夏、天麻。
五更头晕，阳气不足也。盖阳主动，动则阳气上升，故不晕，五更静极，阳气虚则潜于
下，
肾虚阳无所附而晕，六味汤加人参；血虚火升而晕，芎归芍药汤；脾虚生痰，四君子加
半夏、天麻；寒凉伤气，气虚而晕，补中益气加附子；肝木无制而晕，黄 建中汤；血虚头晕，
便燥，归身、白芍、生地各一钱，川芎八分，荆芥七分，细辛一分。
午后头鸣困倦，乃阴中之阳不足也。阴中之阳不足则脾不升，脾不升则肺不降。肺者，
秋之脏也；午后者，秋之令也。秋为金，金主声，不降故头鸣也。脾不升则阳衰而阴盛，所以困
倦也。宜升、柴、 、术醒脾而补阳。阳者，胸中真气，所谓膻中之阳也。
暴病暴死，多属于火，宜左金丸。
暴死有痰声，名痰厥。四君子汤加竹沥、姜汁。
暴怒暴死，名气厥。木香、沉香、槟榔、枳实、乌药。
中气暴死，六君子加天麻。
中寒暴死，附子理中汤。
中热、中 暴死，冷水抉开口灌之，后服三黄汤。
头部是诸阳经汇聚的最高处，患者出现头晕症状，是因为清阳之气不能上升。头部沉重无法抬起，是因为阳气虚弱，不能支撑头颈。
头晕的原因包括：肾气亏虚导致阳气无所依附；血虚导致虚火上炎；脾气虚弱产生痰湿；寒凉之邪损伤中焦脾胃之气，导致气机不能升发，从而引起上焦元气虚弱而头晕；肺气虚弱导致肝木失去制约而头晕。
中气虚弱导致脾脏运化功能失常，进而产生痰湿并向上逆乱引起头晕的，使用四君子汤加入半夏、天麻。
五更时分（凌晨3-5点）头晕，是因为阳气不足。因为阳气主运动，运动时阳气上升，所以不会头晕；五更时分静极，若阳气虚弱则潜藏于下。因肾虚导致阳气无所依附而头晕的，使用六味地黄汤加入人参；因血虚导致虚火上炎而头晕的，使用芎归芍药汤；因脾虚生痰湿的，使用四君子汤加入半夏、天麻；因寒凉损伤正气，气虚而头晕的，使用补中益气汤加入附子；因肝木失制而头晕的，使用黄芪建中汤；因血虚导致头晕且大便干燥的，使用当归身、白芍、生地各一钱，川芎八分，荆芥七分，细辛一分。
午后出现头部鸣响、困倦乏力，这是阴中之阳不足的表现。阴中之阳不足导致脾阳不升，脾不升则肺金不降。肺对应秋季；午后对应秋季的时令。秋季属金，金主声音，肺气不降故头部鸣响。脾不升则阳气衰微而阴气盛，因此感到困倦。适宜使用升麻、柴胡、苍术醒脾并补益阳气。所谓“阳”，是指胸中的真气，也就是膻中部位的阳气。
突发疾病导致的暴死，多属于火邪所致，适宜使用左金丸。
暴死伴有痰鸣声的，称为痰厥。使用四君子汤加入竹沥、姜汁。
因暴怒导致的暴死，称为气厥。使用木香、沉香、槟榔、枳实、乌药。
因中气暴脱导致的暴死，使用六君子汤加入天麻。
因中寒导致的暴死，使用附子理中汤。
因中暑或中热导致的暴死，用冷水撬开口腔灌入，之后服用三黄汤。
The head is the summit of all Yang meridians. Dizziness in patients arises from the failure of clear Yang Qi to ascend. A heavy head that cannot be lifted indicates deficiency of Yang Qi, which fails to support the neck and head.
Causes of dizziness include: Kidney deficiency leading to Yang Qi having no root; Blood deficiency causing deficient Fire to flare upward; Spleen deficiency generating Phlegm; Cold-Coolth damaging Middle Qi, preventing its ascending and transforming nature, thus resulting in deficiency of Yuan Qi in the Upper Jiao and subsequent dizziness; Lung deficiency failing to control Liver Wood, leading to dizziness.
When Middle Qi deficiency causes the Spleen to fail in transportation and transformation, generating Phlegm that rebels upward and causes dizziness, treat with Si Jun Zi Tang (Four Gentlemen Decoction) added with Ban Xia (Pinelliae Rhizoma) and Tian Ma (Gastrodiae Rhizoma).
Dizziness occurring at Wugeng (fifth watch, approx. 3-5 AM) is due to insufficiency of Yang Qi. Since Yang governs movement, when active, Yang Qi ascends, preventing dizziness. At Wugeng, stillness prevails; if Yang Qi is deficient, it sinks downward. For dizziness caused by Kidney deficiency where Yang has no attachment, use Liu Wei Di Huang Wan (Six-Ingredient Rehmannia Pill) added with Ren Shen (Ginseng Radix et Rhizoma). For dizziness due to Blood deficiency and flaming-up of Fire, use Xiong Gui Shao Yao Tang (Szechuan Lovage and Angelica Decoction). For Spleen deficiency generating Phlegm, use Si Jun Zi Tang added with Ban Xia and Tian Ma. For Qi deficiency due to Cold-Coolth injury, use Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) added with Fu Zi (Aconiti Lateralis Radix Praeparata). For dizziness due to unconstrained Liver Wood, use Huang Qi Jian Zhong Tang (Astragalus Decoction for Building the Middle). For Blood deficiency causing dizziness accompanied by dry stools, use Dang Gui Shen (Angelicae Sinensis Radix), Bai Shao (Paeoniae Radix Alba), and Sheng Di Huang (Rehmanniae Radix) each 1 qian, Chuan Xiong (Ligustici Chuanxiong Rhizoma) 8 fen, Jing Jie (Schizonepetae Spica) 7 fen, and Xi Xin (Asari Radix et Rhizoma) 1 fen.
Tinnitus in the head and fatigue in the afternoon indicate insufficiency of Yang within Yin. Insufficiency of Yang within Yin leads to failure of Spleen Yang to ascend; if Spleen does not ascend, Lung Metal does not descend. The Lung corresponds to Autumn; the afternoon corresponds to the season of Autumn. Autumn belongs to Metal, and Metal governs sound; failure of descent results in head tinnitus. Failure of Spleen ascent leads to decline of Yang and excess of Yin, causing fatigue. It is appropriate to use Sheng Ma (Cimicifugae Rhizoma), Chai Hu (Bupleuri Radix), Cang Zhu (Atractylodis Rhizoma) to awaken the Spleen and tonify Yang. "Yang" refers to the True Qi in the chest, also known as the Yang of Dan Zhong (Conception Vessel CV17).
Sudden death from acute illness often belongs to Fire pathogenesis; treat with Zuo Jin Wan (Left Metal Pill).
Sudden death accompanied by phlegm rattle is named Tan Jue (Phlegm Syncope); treat with Si Jun Zi Tang added with Zhu Li (Bambusae Succus) and Jiang Zhi (Zingiberis Juice).
Sudden death from sudden anger is named Qi Jue (Qi Syncope); treat with Mu Xiang (Aucklandiae Radix), Chen Xiang (Aquilariae Lignum), Bing Lang (Arecae Semen), Zhi Shi (Aurantii Fructus Immaturus), and Wu Yao (Linderae Radix).
Sudden death from collapse of Middle Qi is treated with Liu Jun Zi Tang (Six Gentlemen Decoction) added with Tian Ma.
Sudden death from Cold invading the Middle is treated with Fu Zi Li Zhong Tang (Aconite Decoction to Warm the Middle).
Sudden death from Heatstroke or excessive Heat: pry open the mouth with cold water and pour it in, then administer San Huang Tang (Three Yellows Decoction).