Well, first of all, it's completely natural, as it heals the way our bodies naturally do.
The body is a natural magnetic field. This is created by the flow of electrically charged ions in and out of the cells and the transmission of electric impulses through cell membranes.
By creating harmless electromagnetic pulses, complementary to those in your body, pulsed electromagnetic field (PEMF) therapy can naturally influence electrical changes on a cellular level and thus influence the body.
By doing so, PEMF therapy regenerates damaged and diseased tissue, repairs torn tendons and fractured bones. It enhances the synthesis of protein in the cells, allowing the body to take advantage of all the protein available.
PEMF therapy can also improve circulation, not by increasing the heartbeat or blood pressure, but by opening and dilating the arteries and capillaries.
This also reduces oedema (swelling).