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ST-40 is traditionally indicated for certain psycho-emotional disorders such as: "mania-depression, mad laughter, great happiness, desire to ascend to high places and sing, discarding clothing and running around, seeing ghosts, etc." Knowing that it treats such psycho-emotional disorders, what type of point is ST-40?
Luo-Connecting points treat psycho-emotional disorders.

Source: "Point Categories." A Manual of Acupuncture, by Peter Deadman et al., Journal of Chinese Medicine Publications, 2007, pp. 41 [Q840]