Full Spectrum Fit

Does slow cardio actually matter if you already lift four days a week? Miles and Amara dig into the science behind Zone 2 training, starting with a 2025 Sports Medicine review that challenges whether it's uniquely superior for mitochondrial adaptations. You'll learn why the "cardio kills gains" fear traces back to a 1980 study with an extreme protocol no reasonable lifter uses, how Zone 2's effect on cardiac output can directly improve recovery between sets, and when HIIT makes more sense than steady-state work for time-crunched schedules. The episode closes with a practical weekly structure — two Zone 2 sessions, one HIIT session, scheduled around leg days — built for people who treat strength and conditioning as complementary tools, not competing priorities.

What actually happens to your training when you cut sleep short, and which sleep changes move the needle most for recreational athletes? Miles and Amara use their own rough training weeks to unpack how sleep loss affects strength, power, and skill work, drawing on data from elite basketball players and a recent meta-analysis on acute sleep deprivation.Listeners learn how partial end-of-night sleep loss measurably reduces performance, how REM sleep consolidates movement patterns to close the adaptation loop, and why late-night high-intensity sessions can delay melatonin and push back sleep onset. They also get three concrete levers to adjust before next Tuesday: consistent wake time, cooler room temperature, and deliberate light management in the evening. The conversation ties sleep back into the "full spectrum" of training, showing how recovery, physiology, and daily choices fit together instead of living in separate boxes.

Can you train hard on GLP-1 medications without sacrificing strength, muscle, or performance? Miles and Amara unpack what these drugs actually do in active bodies, using the Serena Williams ambassador news and WADA’s interest as the backdrop for a bigger conversation about lifting, running, and competing on GLP-1s.Listeners learn how GLP-1s change fullness, slow digestion, and create a quiet calorie deficit that can derail fueling. They learn what current research and coaching experience say about muscle loss and how resistance training plus protein can protect lean mass. They also learn how to use mechanical eating and scheduled hydration to avoid low energy availability and RED-S while training. Released on a Tuesday, this conversation grounds the GLP-1 trend in a full-spectrum view of strength, health, and performance.

Does adding cardio actually kill your strength gains, or has gym culture been wrong for decades? Miles and Amara revisit the classic interference studies, explain what is really happening at the molecular level between mTOR and AMPK, and show how easy Zone 2 bike sessions can support rather than sabotage lifting. Listeners learn how the Hickson study and a 2012 meta-analysis shaped the “cardio kills gains” myth, how training order and a simple three-hour window after hard cardio reduce interference, and how to choose between running and cycling based on eccentric stress and recovery. A practical weekly hybrid template and small, actionable programming tweaks help you plan strength and cardio together with confidence every Tuesday and beyond, supporting a genuinely full-spectrum approach to training.