placebo

Or it could be that the needles caused a “super placebo” effect, triggering a real reaction in the brain that changes the way the body perceives and responds to pain.

或者是因为针灸造成了一种“超级安慰剂”效应，并触发了大脑内的一个反应，这种反应能改变身体对疼痛信号的感知和回应。