Photobiomodulation (PBM) or otherwise known as Red light therapy has definitely gained more attention in the last few years. However, the history of red light therapy goes back as far as 50 years ago when it was discovered by Endre Mester in Hungary. It also became more known in the 1990’s when NASA started studying it to help with pain relief and wound healing. So while it seems like red light therapy is trending now, it has been around for some time.