Biology and medicine have long known that more advanced forms of life emit various forms of energy as they go about their business. Mammals emit heat as a byproduct of their metabolisms, and the electrical activity of the musculature, cardiopulmonary, and central nervous systems may be picked up by sensitive instruments and used for diagnostic purposes. Recently, researchers in Japan have discovered that human bodies also emit light in the visble spectrum, albeit in a fashion that most sensors cannot detect. In fact, most lifeforms emit visible light in some fashion though the mechanism behind it isn’t understood. This …