To obtain a human healing ability improving device capable of satisfactorily giving stimulation for improving the natural healing power of a living body.A pressure reducing pump communicating with an exhaust port of the airtight portion to reduce an air pressure in the airtight portion and a pressure reducing mechanism for controlling a pressure of the airtight portion to a predetermined pressure And an overpressure prevention device that prevents excessive depressurization below a threshold atmospheric pressure, further comprising depressurization control means for controlling the depressurization pump, wherein the depressurization control means controls the pressure in the airtight portion to be equal to or higher than the threshold atmospheric pressure A depressurizing step of changing the pressure to a reduced pressure state and a pressurizing step of changing from the reduced pressure state to a wide range of normal pressure state higher than normal pressure or reduced pressure state to a wide normal pressure state are continuously and repeatedly controlled Things to do.(FIG.【課題】 生体の自然な治癒力を向上させる刺激を良好に与えることができるヒト治癒能力向上装置を得る。【解決手段】 気密可能な人体が全て入る部屋として構成された気密部と、この気密部の排気口に連通して気密部内の気圧を減圧する減圧ポンプと、気密部の気圧が予め定められた閾値気圧を下回る過減圧となることを防止する過減圧防止装置とを備えた装置であって、減圧ポンプを制御する減圧制御手段を更に備え、減圧制御手段が気密部内の気圧を閾値気圧以上の減圧状態へ変化させる減圧工程と、この減圧状態から常圧か減圧状態よりも高く常圧よりも低い広範常圧状態へ変化させる与圧工程とを一定の気圧とすることなく連続的に繰り返し制御するもの。【選択図】 図4
