Internal damage by the seven affects

Also affect damage. Damage to yīn, yáng, qì, and blood, etc., by excesses of the seven affects (joy, anger, worry, thought, sorrow, fear, and fright). Powerful or lasting emotions and certain mental activities can damage yīn, yáng, qì, blood, and eventually the bowels and viscera. Plain Questions (素问 sù wèn) describes the effect of six of the affects specifically on qì. See joy causes qì to slacken; anger causes qì to rise; thought causes qì to bind; sorrow causes qì to disperse; fright causes derangement of qì; fear causes qì to precipitate; excess among the five minds. See also affect.