Recently I did a simple experiment : using an electronic stimulus pen (经络笔）costed about S$12 from Tao-bao.com , to stimulate various acupuncture points such as : 曲池穴，内关穴，合谷穴，肩井穴，太冲穴 and 列缺穴，each for 3 min duration on both left and right sides. Before and after each electronic impulse stimulation , I found that the 列缺穴 which is originally…