Can you talk while you run? The Talk Test is a science-backed way to find your easy and threshold paces without a heart rate monitor. Here’s how to use it.

Everything you need to train for your marathon in one place: how long the build takes, what your weeks should look like, fueling, pacing, the taper, and recovery. Evidence-based, coach-written, no fluff.

Sports dietitian Stevie Lyn Smith on hydration strategy, sweat testing, carb needs, and caffeine timing for running in summer heat and humidity.

A complete race day blueprint from coaches Amanda Katz and Nick Klastava, covering logistics, carb loading, sleep, pacing strategy, and common race day mistakes.

Running sometimes feels harder than it should

Inconsistent pacing isn’t just annoying—it’s inefficient. This new study shows how fluctuating your effort, even if your average pace looks fine, leads to greater fatigue and worse performance. Learn how steady effort (not perfect splits) is the key to better training, stronger races, and smarter running.

If you've ever felt like running on the treadmill is harder than running outside at the same pace, you're not alone. Many runners report that their treadmill pace is slower for an equivalent effort compared to running outdoors. RPE – basically how hard an effort feels on a subjective scale – can vary between the two settings even if your actual speed or heart rate is the same. In simpler terms, a pace that feels "moderate" outside might feel "hard" on the treadmill.