The Accidental Discovery of Redlight Therapy: A History of RLT & the Clinical Benefits of Light

How did growing potato plants in space lead to a multibillion-dollar healing revolution? In the mid-1990s, NASA engineers testing energy-efficient LED lights for growing food on the space shuttle noticed that minor cuts and scrapes were healing unusually fast under the same lights.

This book tells the full story — from Niels Finsen’s 1903 Nobel Prize-winning work, to Endre Mester’s 1967 laser discoveries, to the NASA-funded breakthroughs that brought light therapy (photobiomodulation) to the mainstream — and asks how much of it is proven science and how much is marketing.

Disclaimer: For informational purposes only. Not medical advice. Consult a qualified health-care provider before beginning any new therapy.