Build for Health with Srdjan Injac

Build for Health is a show that flips the script on fitness. Hosted by longtime podcaster Pete Wright and strength coach Srdjan Injac of ELEV8 Fitness, this show isn’t about gym culture or getting shredded—it’s about why building muscle is the most important investment you can make in your long-term health. Each week, Pete and Srdjan break down the science, bust the myths, and offer real-world insight into how resistance training supports not just strength, but brain function, metabolic health, emotional well-being, immune resilience, and aging with independence. If you think lifting weights is just for looks, think again. It’s time to rethink strength—and build a body that’s built for life. --- Meet the Hosts Srdjan Injac is a certified strength coach and the founder of ELEV8 Fitness in Portland, Oregon. With a background in kinesiology and a lifelong passion for movement, he’s trained everyone from elite athletes to everyday professionals to feel strong, live pain-free, and age with purpose. Srdjan’s coaching style is built on evidence-based training, long-term sustainability, and a deep belief in the power of muscle as medicine. Pete Wright is a veteran podcaster, storyteller, and—most importantly—a guy who used to avoid the gym at all costs. Srdjan’s just so happens to be his trainer. As such, Pete tries to bring curiosity, candor, and a deeply personal perspective on what it really takes to change your relationship with strength... no matter how much it hurts. With a background in health communication and habit-building for adults with ADHD, Pete asks the questions we’re all wondering—and helps listeners stay curious while getting stronger.

  1. 5d ago

    Sleep Is the Workout

    You can do everything right in the gym and still undo it on the couch at midnight. Lifting doesn't build muscle while you're lifting. It damages muscle and sends a signal. The rebuilding comes later, mostly while you're asleep, and it depends on conditions that a short night takes away. This episode goes inside that night shift. Deep sleep brings a major pulse of growth hormone, but calling it "the muscle-building hormone" sells short what it's actually doing. Testosterone and the nervous system have their own overnight jobs, and strength turns out to be partly something your brain has to practice in its sleep. Then the harder question: what does a pattern of short nights cost someone who's training and dieting at the same time? One number from the research works out to roughly an extra meal a day, eaten without deciding to. From there it's on to whether the weekend catch-up most of us rely on actually balances the books, what a sleep tracker is good for when it's obviously wrong about last night, and a practical list for people who've slept badly for years. This episode is general information, not medical advice. If you have a diagnosed sleep disorder, work with a specialist. Links & Notes The Effects of Partial Sleep Deprivation on Energy Balance (Al Khatib et al., European Journal of Clinical Nutrition, 2017). The meta-analysis behind the 385-calorie number: short sleep raised daily intake with no change in calories burned.The Effect of Acute Sleep Deprivation on Skeletal Muscle Protein Synthesis and the Hormonal Environment(Lamon et al., Physiological Reports, 2021). One night without sleep lowered muscle protein synthesis by 18%.Sleep Curtailment in Healthy Young Men Is Associated with Decreased Leptin Levels, Elevated Ghrelin Levels, and Increased Hunger and Appetite(Spiegel et al., Annals of Internal Medicine, 2004). The two hunger hormones from this episode.Ad Libitum Weekend Recovery Sleep Fails to Prevent Metabolic Dysregulation (Depner et al., Current Biology, 2019). The study on weekend catch-up sleep.Episode 40: Rest Is Not One Thing. The four kinds of recovery, plus more sleep research.Episode 5: Recovery Is Not a Reward. Where this conversation started.Work with Srdjan and the team at ELEV8 Fitness in Portland, Oregon.Submit your questions to the show!

    Sleep Is the Workout
  2. Aug 27

    Rest is Not One Thing

    Training is the stimulus. It is not the adaptation. That happens later — in the hours we treat as leftover time, and describe with words that all mean absence: rest day, off day, recovery day. This week Pete brings Srdjan a piece of research that has nothing to do with the gym and everything to do with it. In 2007, Sabine Sonnentag and Charlotte Fritz published the Recovery Experience Questionnaire, built on a puzzle they kept running into: hours off didn’t predict who came back restored. Two people take the same weekend. One returns ready. One returns wrecked. Their answer was that recovery isn’t one thing — it’s four, and they don’t substitute for each other. Psychological detachment. Relaxation. Mastery. Control. If you spend all day being told what to do, lying on the couch won’t fix it; you need a rest that hands you back the controls. Srdjan takes that framework into the gym and it holds up uncomfortably well. He walks through what’s actually happening in your body after a hard session — glycogen, protein synthesis, the twenty-four to forty-eight hour repair window — and makes the case that soreness is a lousy measurement of recovery, because different systems come back online at different speeds. Muscles, energy stores, connective tissue, nervous system. None of them are on the same clock. Recovery isn’t separate from training. It is the training. Let’s build. Links & Notes The Recovery Experience Questionnaire (Sonnentag & Fritz, 2007) — the four-factor model of detachment, relaxation, mastery, and control. Free full text, and the paper that kicked off this whole episode. Also on PubMed.Insufficient Sleep Undermines Dietary Efforts to Reduce Adiposity (Nedeltcheva et al., Annals of Internal Medicine, 2010) — the metabolic ward study, 8.5 versus 5.5 hours of sleep opportunity.Effect of 1 Week of Sleep Restriction on Testosterone Levels in Young Healthy Men (Leproult & Van Cauter, JAMA, 2011).The Effects of Sleep Extension on the Athletic Performance of Collegiate Basketball Players (Mah et al., Sleep, 2011) — every player improved on every measure.Gaining More From Doing Less? (PeerJ, 2024) — the thirty-nine-lifter deload study. Free full text.Work with Srdjan and the team at ELEV8 Fitness in Portland, Oregon.Submit your questions to the show!

    Rest is Not One Thing
  3. Aug 20

    Stress, Cortisol, and Your Gains

    Cortisol gets described online as the thing standing between you and the body you want. It's actually the hormone that gets you out of bed. It runs on a daily curve, highest in the morning and lowest at night, and it regulates blood sugar, blood pressure, inflammation, and how much energy the body makes available when something demands it. Exercise raises it. That's the point of exercise. A hard session raises cortisol for a few hours, then it settles. Chronic stress never allows the settling. The body doesn't keep separate accounts for work, caregiving, money, bad sleep, and training. It adds them up, and when the total outruns the capacity to recover, strength stalls and motivation goes, and the natural conclusion is that the program isn't working. An acute training spike is a different condition than chronically elevated cortisol, and treating them as the same thing is how people end up buying a supplement to solve a sleep problem. "Cortisol belly" turns out to be a product category. Five hours a night turns out to have a price. Plus: the case for walking into the gym anyway on the worst days. Links & Notes On cortisol's normal daily rhythm Cortisol Awakening Response: Regulation and Functional Significance — Endocrine ReviewsThe circadian system modulates the cortisol awakening response in humans — Frontiers in NeuroscienceOn exercise, cortisol, and stress regulation Effects of a 12-week endurance training program on the physiological response to psychosocial stress in men: a randomized controlled trial — Journal of Behavioral MedicineThe effects of exercise intensity on the cortisol response to a subsequent acute psychosocial stressorOn "cortisol belly" The 'cortisol belly' myth: when diet culture is rebranded as wellness — The Conversation9 Myths About the 'Stress Hormone' Cortisol — TIMERoutine Screening for Cushing's Syndrome Is Not Required in Patients Presenting with ObesityOn sleep Sleep loss lowers testosterone in healthy young men — UChicago Medicine (Leproult & Van Cauter, JAMA 2011 — the 10–15% finding)Sleep loss boosts hunger and high-calorie food choices — University of ChicagoImpact of Five Nights of Sleep Restriction on Glucose Metabolism, Leptin and Testosterone in Young Adult Men — PLOS OneOn energy availability and reproductive hormones Hypogonadism in Exercising Males: Dysfunction or Adaptive-Regulatory Adjustment?Show links ELEV8 FitnessSubmit your questions to the show!

    Stress, Cortisol, and Your Gains
  4. Aug 13

    Listener Questions

    A calorie deficit takes energy away. Building muscle demands it. Whether you can do both at once depends almost entirely on where you're starting from, and the answer for a beginner is not the answer for someone ten years in. Exercise order comes next. The case for doing compound lifts first has nothing to do with those lifts being better. It's about energy: what a squat asks of you versus what a leg extension asks, and what happens to your form once the tank is empty. There are limits to that rule, and they're worth knowing before you treat it as gospel. Then the timeline questions. One listener has a baby on the way and a month with no gym in front of him, and wants to know when "you don't lose it that fast" stops being true. Another is 67. His doctor just told him muscle is the organ of longevity and to start lifting. His adult kids are terrified. Then the peptide mail. What an FDA advisory vote actually does, and what it doesn't. Why a yes vote is not an approval. Who pays for trials on a molecule nobody can patent, and what happens if the answer is nobody. Plus a listener six weeks into treating his own elbow, asking when "we need more human trials" stops being caution and starts being a gate. Corrections & Context We check the big factual claims after every episode. Here's what needs fixing, what needs more context, and what held up. Everything links to a source so you can check us. What we got wrong 1. You can't currently get these peptides from a compounding pharmacy. On air we described the FDA committee's vote as clearing the way for a doctor to write a prescription and a compounding pharmacy to fill it. That isn't where things stand. The Pharmacy Compounding Advisory Committee met July 23–24, 2026 and voted, but an advisory committee vote is not an agency action. Nothing has legally changed. Before any of these substances can be compounded, the FDA has to accept the recommendation and add it to the 503A Bulks List through formal notice-and-comment rulemaking, and that process hasn't started. As of this writing, none of the seven peptides reviewed in July can legally be compounded. → FDA's Advisory Committee Votes on Peptides: What It Does and Doesn't Do — Mintz (July 29, 2026) → What the Peptide Vote Actually Changes at My Counter (Hint: Not Much, Yet) — Pharmacy Times One thing to separate out: plenty of peptides remain legally compoundable and always have. The seven under review are the exception. 2. The FDA did not lose in court. We said the agency "lost in court" and that's why the peptides came back. No such loss happened. The path back ran through the executive branch: the FDA removed twelve peptides from Category 2 in April 2026 after their nominations were withdrawn, then sent them to the advisory committee. Where compounding has actually been fought in court lately — the Outsourcing Facilities Association suits over GLP-1 shortage delisting — the FDA won. Judges denied the compounders' injunctions in both the semaglutide and the tirzepatide cases. → FDA clarifies policies for compounders — U.S. Food and Drug Administration → Court Backs FDA in Tirzepatide Compounding Case — McDermott 3. "Peptides are not drugs" is backwards. "Peptide" describes a chemical: a short chain of amino acids. "Drug" describes a legal category. Something can be both, and most peptide medicines are. Ozempic and Wegovy are FDA-approved drugs whose active ingredient is a peptide. BPC-157 is also a drug under federal law, just an unapproved one, which is why selling it for human use is illegal. Your body making peptides doesn't change that, any more than your body making cortisol makes prednisone a supplement. This is our own basil-and-nightshade point from the peptides episode, and we dropped it. → Wegovy (semaglutide) prescribing information — FDA → Understanding the Legal Risks of BPC-157 and Other Unapproved Peptides — Holt Law 4. "There are no human trials, and there never will be any" is too strong on both halves. Human studies exist. They're small, old, and mostly unpublished in full. Under the development name PL-14736, BPC-157 went through a safety and pharmacokinetics study in healthy volunteers (Gut, 2003) and a randomized, double-blind, placebo-controlled Phase II study in ulcerative colitis (Gastroenterology, 2005). A Phase I safety trial in 42 volunteers was registered in 2015 (NCT02637284) and cancelled without published results. The most recent human data is a 2025 intravenous safety pilot in two people. Fewer than thirty published human subjects, total. That's a bad number, but it isn't zero, and "no trials" and "almost no data" lead to different conversations. The "never will be" half is fair as far as it goes. A molecule without strong patent protection has little commercial money behind it. But academic and government-funded trials happen all the time. And there's an irony from the committee itself: some members argued that allowing compounding would open the door to more study, while the counterargument is that selling it commercially removes any reason to ever run the trial. → Is BPC-157 safe for use in humans? — InpharmD evidence summary, with primary citations → Safety of Intravenous Infusion of BPC157 in Humans: A Pilot Study — PubMed 5. The vote was six of seven, not two — and our earlier reporting needs updating too. We've been describing the July meeting as a narrow win for BPC-157 and KPV with the others still pending. The final tally: the committee recommended adding BPC-157, KPV, TB-500, MOTS-c, epitalon, and semax to the 503A list, and voted againstemideltide (DSIP). Two things matter more than the count. The FDA's own scientific reviewers recommended against all seven. And each peptide was judged against one specific medical use — BPC-157 was assessed for ulcerative colitis, not tendons or elbows or recovery. The uses driving all the demand were never on the ballot. → FDA Expert Panel Backs Compounding of Six Peptides — Medscape → FDA briefing documents and meeting materials, July 23–24, 2026 PCAC 6. There is no 300-pound threshold for GLP-1 medications. We talked about eligibility in pounds. The FDA label uses BMI: 30 or greater, or 27 or greater with at least one weight-related condition such as hypertension, type 2 diabetes, or dyslipidemia. Someone hoping to lose twenty-five pounds may well qualify. Someone who weighs three hundred p...

    Listener Questions
  5. Jul 30

    What Are Peptides? BPC-157, TB-500, and the FDA Fight, Explained

    A peptide is a short chain of amino acids. That's the entire definition. Insulin is a peptide. So is the drug in Ozempic. So are BPC-157 and TB-500 — compounds athletes have used for injury recovery for years, and which the FDA moved to a restricted list in September 2023, citing limited human safety data. In late July, an FDA advisory committee spent two days voting on whether pharmacies should be allowed to make seven of them again. Six passed. Every vote was close. The agency's own scientists had recommended against all seven. This episode covers what a peptide actually is, and why the word alone tells you nothing about whether something is safe. Why compounding pharmacies sit at the center of a fight involving big pharma, a federal agency, and a health secretary who has called himself a fan. What the research on BPC-157 actually consists of — and why "over a hundred studies" is a more complicated number than it sounds. And the distinction that most of the coverage got wrong: legal to compound is not the same as FDA-approved, and nothing changed at the pharmacy counter the day after that vote. Also in here: what happens to a supply chain when the legal version disappears, the gas-station-sushi test for anything you're considering injecting, and why one strength coach is booking a conversation with his physician about his own shoulder. Nothing in this episode is medical advice. The recommendation, start to finish, is the same one: talk to your doctor. The news, as of this episode FDA advisory panel narrowly backs six of seven peptides — Associated Press via PBS NewsHour: https://www.pbs.org/newshour/health/watch-live-day-2-of-fda-advisory-panel-meeting-to-consider-use-of-peptidesPanel backs epitalon and semax, rejects emideltide — STAT, July 24, 2026: https://www.statnews.com/2026/07/24/fda-peptide-compounding-panel-backs-epitalon-rejects-emideltide/FDA staff and peptide advocates clash at advisory panel — STAT, July 23, 2026: https://www.statnews.com/2026/07/23/fda-advisory-panel-peptide-safety-compounding-pharmacies/What the peptides are and what happens next — CNN, July 31, 2026: https://edition.cnn.com/2026/07/31/health/what-are-peptides-fda-next-steps-wellnessFDA panel supports broadening access — NPR, July 23, 2026: https://www.npr.org/2026/07/23/nx-s1-5903202/fda-peptides-restrictionsVote-by-vote breakdown — American Journal of Managed Care: https://www.ajmc.com/view/fda-panel-backs-6-peptides-for-compoundingCommittee backs two more, rejects one — Regulatory Affairs Professionals Society: https://www.raps.org/resource/fda-advisory-committee-backs-two-more-peptides-rejects-one-for-compounding-list.htmlWhat the vote does and doesn't do A pharmacist on what the reclassification actually means — Pharmacy Times: https://www.pharmacytimes.com/view/the-peptide-reclassification-everyone-s-talking-about-a-pharmacist-s-take-on-what-rfk-jr-s-announcement-actually-meansLegal analysis of the committee's votes — Mintz: https://www.mintz.com/insights-center/viewpoints/2146/2026-07-29-fdas-advisory-committee-votes-peptides-what-it-does-andFDA's removal of twelve peptides from Category 2, and what it doesn't mean — Orrick: https://www.orrick.com/en/Insights/2026/04/FDA-Announces-Removal-of-12-Peptides-from-Category-2-and-Schedules-PCAC-MeetingsOn the conflict-of-interest question FDA advisers back looser rules for six peptides — Bloomberg Law: https://news.bloomberglaw.com/health-law-and-business/fda-review-committee-rejects-first-peptide-in-second-day-hearingPrimary source FDA: July 23–24, 2026 Meeting of the Pharmacy Compounding Advisory Committee: https://www.fda.gov/advisory-committees/advisory-committee-calendar/july-23-24-2026-meeting-pharmacy-compounding-advisory-committee-07232026The show ELEV8 Fitness: https://elev8fitnesspdx.comSubmit your questions!

    What Are Peptides? BPC-157, TB-500, and the FDA Fight, Explained

Ratings & Reviews

5
out of 5
2 Ratings

About

Build for Health is a show that flips the script on fitness. Hosted by longtime podcaster Pete Wright and strength coach Srdjan Injac of ELEV8 Fitness, this show isn’t about gym culture or getting shredded—it’s about why building muscle is the most important investment you can make in your long-term health. Each week, Pete and Srdjan break down the science, bust the myths, and offer real-world insight into how resistance training supports not just strength, but brain function, metabolic health, emotional well-being, immune resilience, and aging with independence. If you think lifting weights is just for looks, think again. It’s time to rethink strength—and build a body that’s built for life. --- Meet the Hosts Srdjan Injac is a certified strength coach and the founder of ELEV8 Fitness in Portland, Oregon. With a background in kinesiology and a lifelong passion for movement, he’s trained everyone from elite athletes to everyday professionals to feel strong, live pain-free, and age with purpose. Srdjan’s coaching style is built on evidence-based training, long-term sustainability, and a deep belief in the power of muscle as medicine. Pete Wright is a veteran podcaster, storyteller, and—most importantly—a guy who used to avoid the gym at all costs. Srdjan’s just so happens to be his trainer. As such, Pete tries to bring curiosity, candor, and a deeply personal perspective on what it really takes to change your relationship with strength... no matter how much it hurts. With a background in health communication and habit-building for adults with ADHD, Pete asks the questions we’re all wondering—and helps listeners stay curious while getting stronger.

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