Disorders of life-preserving rlung are caused by excessive hunger, overeating of spicy foods, excessive control of urination 'and defecation or straining in defecation. Its symptoms include difficulty in inhaling, difficulty in swallowing, uneasiness, vertigo and dizziness.

Disorders of the ascending rlung are caused by excessive control of the desire to belch or vomit, or loading beyond one's capacity, excessive crying and laughing, and the manifestations of these disorders include unconsciousness, dry mouth and eyes, hoarseness, a stutter or aphasia.

Disorders of the pervasive dung are caused by excessive walking or standing, reluctant competition and sudden fright. Its manifestations include sudden fainting, anginag pectoris, and dysphasia, aimless walking, and often occur after a sudden fright.

Disorders of the descending dung are caused by inhibition of the normal functions of the body, including excessive control of ejaculation in coitus, or restraining the desire to defecate and urinate. Its manifestations include dry stool, inability to pass wind, anuria, and pain in the joints of the lower extremities and flaccid limb joints.

Disorders of the fire-accompanying dung are caused by dyspepsia, eating poisonous or rotten food, or, sometimes, sleeping during the daytime. Its manifestations include loss of appetite, indigestion after eating, vomiting with mucus, etc.
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Source:http://www.tcmadvisory.com/index.asp