Today's guest is a familiar voice on the show. He brings a wealth of knowledge and insight into human health, performance, and longevity. He has a background in biochemistry, medicine, physiology, and neuroscience.  But he's not just an academic, researcher, and professor but also an athlete who understands the practical side of human performance. He's been a guiding light in our quest for optimal health, discussing brain health, building resilience, ancestral living, and the nitty-gritty of hot and cold therapy, you name it!  So, Welcome back to The Greg Bennett Show, the brilliant, incredible Dr. Tommy Wood