Investigative journalist and author Jonathan Otto joins to break down what red light and near-infrared therapy actually does, how it activates your body's own stem cells and exosomes, the connection to MedBed-level cellular repair, whether the science supports the biggest health claims, how long results take, side effects, whether it works for hair loss, and if you can overdo it. If Big Pharma is scared of it, that's reason enough to pay attention.