Full Spectrum Fit

Does Ozempic actually eat your muscle, or is that gym-floor warning oversimplified? Miles and Amara dig into a University of Utah mouse study showing most GLP-1-related lean mass loss comes from organ shrinkage, not skeletal muscle, then unpack apitegromab, a myostatin-blocking drug tested with tirzepatide that showed real lean mass retention in early trials. Listeners will learn why strength can...

How much strength training do you actually need to lower your risk of dying from heart disease, Alzheimer's, or any cause? A 30-year Harvard study tracking nearly 150,000 adults puts a number on it — and the answer is more achievable than most people assume. Miles and Amara break down exactly where the longevity benefit peaks and why adding more volume past that point returns nothing extra. You wi...

Does drinking more water actually solve your hydration problem — or is volume the wrong variable entirely? Miles and Amara dig into why two liters of plain water left Miles salt-crusted and foggy after a heat training session, and what the research says about why generic hydration advice fails a significant portion of athletes. You will learn how to calculate your personal sweat rate at home using...

Do GLP-1 drugs like semaglutide quietly reduce how much you move — even as the weight comes off? New data from ENDO 2026, tracking 753 adults via Fitbit, says yes, and the implications for muscle retention are significant. Miles and Amara break down the study methodology and what the findings actually prove, explain how GLP-1 receptors interact with the brain's reward and motivation circuits to su...

Can training in summer heat actually make you faster in the fall? Miles and Amara break down the physiology of heat acclimation, including how plasma volume expansion, a measurable EPO spike, and improved sweat efficiency translate into real performance gains in cool conditions. You will learn what a practical two-week acclimation block looks like, why post-exercise sauna may be a smarter tool tha...

Why does dedicated stretching leave you just as stiff under load? Miles and Amara dig into the difference between passive flexibility and usable mobility, and why that gap is where injuries actually happen. Using the FRC framework, they break down what the nervous system is doing when it withholds range during a squat or overhead press, why static holds over 60 seconds can reduce force output befo...

Does the research actually support sauna, cold plunge, and contrast therapy — or is most of it just aesthetics with a scientific veneer? Miles and Amara pull apart the evidence on each modality, covering why post-workout cold water immersion can blunt muscle growth through mTORC1 signaling, how sauna-driven plasma volume expansion and heat shock proteins deliver real cardiovascular and recovery be...

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...

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 slee...

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 calo...

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 kil...