#412 The Biochemistry of Better Rest, COPD, Nature's Restorative Power, and Cold Plunges and Your Gut Biome

Welcome to this episode of The Tonic, terrestrially broadcast on November 15 and 16, 2025 on AM740 and FM 96.7 in Toronto. Topics covered on the show track the lifestyle articles and themes published in The Tonic Newsletter and on the Tonic Website. We'll discuss how to get better rest with nutraceutical formulator Dr. Gordon Chang PhD, world COPD day with COPD Canada co-founder Henry Roberts, the restorative power of nature with author Dianne Ebertt Beeaff, and how cold plunges affect gut bacteria with health CEO Alex Martinez.