Provided is a human healing ability enhancing apparatus comprising: an airproof section capable of being airproofed a depressurization pump which communicates with an exhaust port of this airproof section and decreases the atmospheric pressure inside the airproof section and an excess-depressurization preventing device which prevents excess depressurization in which the atmospheric pressure inside the airproof section falls below a predetermined threshold atmospheric pressure. The human healing ability enhancing apparatus is capable of favorably providing impetus to enhance the natural healing ability of a body by using a depressurization controlling means which continuously repetitively controls: a depressurization step at which, in 1 to 60 minutes, the atmospheric pressure inside the airproof section capable of being airproofed is changed into a depressurized state indicative of being the threshold atmospheric pressure or higher and a pressurization step at which, in 1 to 60 minutes, the atmospheric pressure inside the airproof section is changed from this depressurized state either into the normal pressure or into an extensive normal-pressure state indicative of being higher than the depressurized state and lower than the normal pressure.
