
Is Zone 2 Running Overrated? Understanding the Backlash Against and Science of Easy Running
Tread Lightly Running Science PodcastShow Notes
Zone 2 is the magic bullet for improved health and endurance fitness - or it is overrated and spikes your cortisol. You have likely encountered both claims on social media, and neither are correct. In this episode, we dive into the science of zone 2 for runners. We discuss how to set your zone 2 correctly, who should use it, who should ignore their heart rate zones, and what happens if you run slower than zone 2 on your easy runs. Whether you are a new runner or a marathoner, you will learn something from this episode!
In this episode, you’ll learn: ✅ How to use zone 2 correctly ✅ Is zone 2 a waste of time for low-volume runners? ✅ Should female runners train in zone 2? ✅ Do new runners need to use zone 2? ✅ Do you get benefits from training in zone 1? ✅ What to do if you feel you cannot run in zone 2
References 🔬PMID: 40225831 🔬PMID: 40560504 Tread Lightly Running is hosted and researched by Amanda Brooks and Laura Norris, MSc. Production, show notes, and graphics by Laura Norris. If you enjoyed this episode, you may like: 🎧 The Benefits of Using the Run-Walk Method (17 Oct 2025) 🎧 Why You Need All Training Zones to Improve as a Runner (29 Aug 2025)
Let’s stay connected: ➡️ Tread Lightly Running Podcast on Instagram: https://www.instagram.com/treadlightlyrunning/ ➡️ Laura Norris Running on Instagram: https://www.instagram.com/lauranorrisrunning/ ➡️ Subscribe for weekly evidence-based newsletters, straight to your inbox, on https://lauranorrisrunning.substack.com/ ➡️ Run to the Finish on Instagram: https://www.instagram.com/runtothefinish/?hl=en ➡️ Thousands of running gear reviews and training guides: https://runtothefinish.com/
More from Tread Lightly Running Science Podcast
“You’ve got to have high challenge and high support.” In this episode, we sit down with Dr. Duncan Simpson of Dartmouth’s Teeven Center for Peak Performance to discuss the psychology of pushing yourself to your limits as a runner.
If you google “Half Marathon Training Plan,” the search engine presents you with an overwhelming variety of options: Galloway, Hansons, Hal Higdon, Daniels, and more. In this episode, we discuss the fundamental principles of volume, intensity, and progression in the most popular half marathon methodologies.
Running is not bad for your knees - if anything, consistent running is remarkably beneficial for your cardiovascular, metabolic, and mental health. In this episode, we delve into the research around running, disease risk, and mortality/longevity. You will learn how running improves heart health, lowers cancer risk, helps you sleep, and more.
Recovery tools have proliferated in the running world over the past few years: red light therapy, ice plunge buckets, peptides, and more. However, the expensive price tag does not guarantee efficacy. In this episode, we look at the data behind various recovery tools and if they actually work - or if they just come with a powerful placebo effect.
Are broccoli sprout shots the secret to your next PR? Will U-Can gels help you manage weight? And are greens powders a scam or magic bullet? We sit down with registered dietitian Alex Larson, the founder of Alex Larson Nutrition. She answers all our questions on GLP-1s, cortisol-reducing supplements, lactate gels, if Laura can make her own Nomio at home, and more.