The use of suction or vacuum in torture has historical roots. For instance, in some cultures, the use of suction cups or similar devices has been documented as a method to extract bodily fluids or to create pain through suction. However, when discussing "Graias" specifically, it appears there might be confusion or a lack of widely recognized information on the topic. For the purpose of this essay, let's explore the general concept of using suction or similar techniques under the threshold of pain as a torture methodology.
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