Does Red Light Therapy Actually Work? This “Biohacker Fad” May Have Something to It

In 1967, Hungarian scientist Endre Mester tried to cure skin cancer in mice using a low-powered ruby laser. He failed to stop the tumors, but he noticed something bizarre. For the mice treated with light, their hair grew back faster and their surgical wounds healed twice as fast. He called it “laser biostimulation” and continued […]