An exemplary apparatus and method are provided for suppressing an inflammation or an inflammatory cytokine production. For example, the exemplary apparatus and method can cause a weak pulse current to be passed through a living body or living tissue to suppress the inflammation in the living body or the living tissue. The exemplary apparatus can include a power supply device, and a current control device for receiving a supply of power to intermittently apply a direct current at prescribed intervals. The current control device can include a pulse width modulation control device, and the pulse width modulation control device can generate a pulse wave that is a rectangular wave. A time indicating a peak value for rising in one cycle of the pulse wave (“pulse duration”) can be at least 0.1 millisecond, the peak value can be in the range of 1.0V to 20 V, inclusive, and the duty ratio of the pulse wave can be at least 5.5%.
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