The History of Laser Therapy
As early as 1906, Albert Einstein discovered that light had some special properties, but at the time it was not known that it was laser light he had produced.
On May 15, 1960, T.H. Maiman produced a thin beam of intense red light from a ruby crystal.
The first medical reports of the effects of low doses of laser light on cells and tissues were published way back in 1967. It was prof. Endre Mester at the Semmelweis Hospital in Budapest who discovered that if you shaved an area on the back of a rat and illuminated it with specific dose of laser light the hair grew back faster: A tissue stimulant effect had been discovered.
Endre Mester also discovered that it was possible to affect healing of tissue damage and pain response.