Still stuck wondering if upper/lower or push-pull-legs is actually best for muscle growth?In this episode, we break down what actually matters when choosing a training split, how much volume you really need, and why the “best” split depends on your recovery, weak points, and goals. We also cover whether cardio hurts leg growth, how often to train body parts, and what to do if recovery or sleep is limiting progress.If you want more episodes like this — where we translate research into practical coaching decisions — subscribe and follow along each week.🎟️ Save 20% on ANY J3U Program with code J3UPOD👉 https://j3u.site🎓 CoursesLevel 1 — Foundations of Evidence-Based Bodybuilding → https://j3u.site/level1Applied Hypertrophy Optimization → https://j3u.site/ahoFemale Physique Module → https://j3u.site/femaleAll J3U Programs🏋️‍♀️ Hourglass (Female): https://j3u.site/hourglass💪 X-Frame (Male & Female): https://j3u.site/xframe🏆 Olympia Prep: https://j3u.site/olympia🏋️ Get Coaching From J3Uhttps://j3u.site/coaching💪 Join the Community📩 Weekly education emails → https://j3u.site/newsletter🧠 Coaching forums → https://j3u.site/forum👨‍⚕ Marek HealthComprehensive blood work analysis and professional medical guidance10% off your first comprehensive J3U panel + additional markersCode: J3UAffiliate link: https://marekhealth.com/J3UFollow Luke https://www.instagram.com/noswitchfitness?igsh=MTQydDN2bzF4c3oxYw==Follow Johnhttps://www.instagram.com/johnjewett3?igsh=cDgyd2N2YnI1dXoy