HISTORY BEHIND LIGHT THERAPY
The year 1988 was the pivotal year for LEDs (Light Emitting Diodes), when Professor Harry Whelan and his team at the Space Medicine Laboratory of the National Aeronautic and Space Administration (NASA) developed the first of a new generation of LEDs, the so-called NASA LED.
HOW DOES IT WORK?
Photons are discrete particles of pure light energy without mass. The first law of photobiology states that without absorption, there can be no reaction, so the incident photon must be absorbed by the target cells for any reaction to occur. When a photon is absorbed by a cell, it passes on its energy to the cell. The degree of the photon density determines what sort of energy transfer occurs.