How is dripping water on forehead torture?

How is dripping water on forehead torture?

Animated Torture Methods Through History

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Answer 1
November, 2020
Chinese water torture is a painful process in which cold water is slowly dripped onto the scalp, forehead or face for a prolonged period of time allegedly making the restrained victim insane. This form of torture was first described by Hippolytus De Marsiliis in Italy in the 15th or 16th century.

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