Millions of people live with pain, slow recovery, and the physical wear of aging - and most of them have never heard of photobiomodulation. Those who have often encounter confusing claims, equipment they don't understand, and providers who oversell. Healing with Light cuts through all of that. Written by Dr. Phil Harrington - a chiropractor, physicist, and nearly two-decade veteran of laser therapy - this book explains what photobiomodulation actually is, how it works in the body, and where the evidence is strong, mixed, or simply not there yet. Whether you are dealing with chronic pain, a stubborn injury, arthritis, or the slower recovery that comes with age, this guide will help you ask better questions, make smarter decisions, and understand what to realistically expect from treatment. No hype. No promises. Just an honest look at one of the most promising therapies in modern rehabilitation - written for the people it is meant to help.