David Herrera — @DavidHerrera1119, @thesolarathlete, two-time state champion wrestler, multiple world record powerlifter, and the man actively rewiring a high school wrestling facility with UV, infrared, green light, and 55-degree training temperatures — on why the environment is the drug, what the Russians know about training facilities that American gyms don't, and why every grappling room in the world should be doing this.

Nathan Siles returns for Part 2 — biophysics researcher, two-time cancer survivor, founder of Biospectral Systems — on resetting testosterone naturally through light, the right way to breathe for longevity, why supplements are a downstream solution to an upstream problem, and the new Biospectral products that are about to change how we think about indoor environments.