The effects of the blanket are thought to be achieved through the reflection of the patient's own infrared and extra-high frequency emissions back onto their body. Specially designed film membranes inside the blanket prevent the body's electromagnetic emissions from dissipating outwards. These same layers also convert these emissions from the body and reflect them back onto the body. The reflected emissions may have the effect of redistributing the charge density on the skin and exerting positive action on the biologically active points of the body surface.