HIIT, Lift, Repeat: The Surprising Anti-Cancer Side Effect of Sweating 🥵➡️🛡️

What if I told you that doing just one workout could unleash a wave of molecules in your body that fight cancer cells? Sounds like a superhero origin story, right? 🦸‍♀️ Well, that’s exactly what new research has found in women who survived breast cancer.A study published in Breast Cancer Research and Treatment (July 2025) [1] discovered that even a single session of either resistance training (lifting weights) or high-intensity interval training (HIIT) can kickstart your muscles into releasing powerful “myokines” — tiny proteins with big anti-cancer punch.So, what are these “myokines”? 🧪Think of your muscles as secret agents. Whenever you exercise, they release little messengers called myokines that travel through your blood. These aren’t just about muscle growth — they’ve been shown to:* Slow down cancer cell growth 🛑* Tell damaged cells to self-destruct (like pressing the delete button) 🗑️* Keep your immune system sharp 🛡️In this study, after just one workout, women’s blood showed higher levels of decorin, IL-6, SPARC, and OSM — all fancy names for proteins that help put cancer cells in “time out.”The Workout Showdown: Weights vs. HIIT 🥊The researchers compared two types of training:* Resistance Training (RT) – classic strength exercises like chest press, leg press, lunges.* HIIT – short bursts of high effort on a bike, treadmill, or rower, followed by rest.Here’s what they found:* Both workouts boosted anti-cancer myokines.* Both workouts reduced breast cancer cell growth in the lab by up to 29% (that’s not a typo!).* But 👉 HIIT gave a slightly bigger punch, with higher IL-6 levels and stronger immediate cancer cell suppression.Translation: whether you’re lifting dumbbells or sprinting on a bike, your body is fighting back. 🥳What does this mean for you? 🚶‍♀️🏃‍♀️If you’re undergoing an anti-cancer treatment (or just want to stack the odds in your favor):* Do something active at least a few times per week. Even one session has benefits, but consistency is where the magic happens.* Mix it up. Both strength training and cardio are powerful. Together, they make a superhero team.* Go at your own pace. You don’t need to deadlift a car or sprint like Usain Bolt. Moderate-to-high intensity for you is what counts.And hey, exercise doesn’t just help on the cellular level. It also boosts mood, energy, and sleep. So, if cancer-fighting molecules aren’t enough motivation, maybe better zzz’s will do the trick. 😴✨The Bottom Line 📌This study is the first to show that in those undergoing an anti-cancer treatment, a single workout can spark anti-cancer changes in the blood that slow cancer cell growth. That’s huge.So next time you’re debating whether to work out or binge-watch another episode of your favorite series, remember: even one sweat session might be helping your body fight cancer. 🏋️‍♀️🔥Our app BreathNow includes tens of short guided videos with different exercise modalities of different intensities which deliver different health benefits. Please try it for free and let us know how it worked for you. 💃Reference:* A single bout of resistance or high-intensity interval training increases anti-cancer myokines and suppresses cancer cell growth in vitro in survivors of breast cancer This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit strongover60.substack.com