12In this episode, I'm continuing my conversation with Tom Kerber, an engineer with a great deal of knowledge and experience in the field of photobiomodulation (aka modifying biology with light).

Be sure to listen to part 1 if you haven't already!

Two decades ago, Tom shifted his career from electronic to LED device development, and since then, he's been creating sophisticated tools and equipment to help us better understand the penetration depth of red and near-infrared light.

In our conversation today, Tom and I dig even deeper into the controversies and science surrounding red and near-infrared light therapy, particularly the nanometer range needed to truly penetrate our tissues and experience a therapeutic dose of light inside our bodies.