Relying only on low-impact exercise can leave you more fragile as you age, because your bones and connective tissue need impact to stay strong. Graham Tuttle, a coach, the author of Born to Sprint, and the self-styled Barefoot Sprinter, argues that sprinting, jumping, and throwing are the real markers of a healthy body at any age, and that stripping impact out of your training in the name of safety quietly erodes the very capacity it is meant to protect. In this conversation, Graham and Coach Allan get into why impact signals your bones and your brain that they are still needed, how training barefoot restores feedback and movement most of us have lost, the story of Graham coaching his own father to run again 15 years into a Parkinson's diagnosis, and his 10% rule for reintroducing impact safely when you are starting from badly out of shape. Time Stamps: 06:00 Trusting the body's natural design 07:44 Poor eyesight, lifting for looks, and losing body connection 12:27 Rethinking the reductionist physical-therapy model 13:42 Fascia, movement patterns, and the whole body 17:57 Why impact keeps the body and brain online 20:51 How the muscle system manages force 24:04 Physical limitation and how you perceive the world 30:23 Impact, hormones, bones, and the brain 32:56 His father's Parkinson's and rethinking fitness 35:55 Finding purpose and meaning in older age 39:44 Jeffy: starting from ground zero 41:12 The philosophy of sprinting 46:44 Using impact to shake things loose 48:25 Rebuilding movement patterns from the ground up 54:03 Sprinter swinging and plyometrics 55:01 Restoring the ability to sprint Links: Graham Tuttle's book, Born to Sprint: Unlock Your Natural Strength, Speed, and Athleticism: https://amzn.to/4xzlCqa Graham's website: https://thebarefootsprinter.com/ Graham on YouTube, Facebook, LinkedIn, TikTok, and Instagram: The Barefoot Sprinter Coach Allan's book, The Wellness Roadmap: https://amzn.to/3U1xEdn