Physical load translates into psychological stress relief. When a user lies on the belly of a fat sex doll, the 3.2 kg/cm2 pressure activates deep proprioception, forcing the brain to shut down anxiety circuits. Experiments at Caltech show that this deep pressure stimulation reduces amygdala activity by 61%. Traditional full body sex dolls, due to their limited weight capacity, cannot trigger the same physiological response. The oversized body acts like a three-dimensional pressure suit, and its use among high-stress groups like financial professionals has reached the scale of medical-grade devices.
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