• Running in the Cold and What Your Body Actually Does When You Freeze for Fun

    Running in winter gets romanticized a lot. Snowflakes, cozy gear, breath in the air. All cute until you’re facing a 3°C drizzle with wind cutting through your bones like unpaid rent. But there’s way more happening than just feeling „cold.“ Your body is fighting for heat, juggling blood flow, and changing how it uses energy…

  • Aerobic, Anaerobic & Threshold: Endurance Terms Decoded

    If you’ve ever looked at a training plan and felt completely lost by terms like „aerobic base,“ „lactate threshold,“ or „VO₂max,“ you’re not alone. These words get thrown around like everyone just naturally knows what they mean. Spoiler: most people don’t. But behind all that jargon are pretty straightforward concepts about how your body makes…

  • The World Marathon Majors: Your Guide to Running’s Ultimate Challenge

    For years, serious marathoners talked about the „Big Six“ – those legendary races that every distance runner dreamed of conquering. In 2024, Sydney joined the party, making it officially seven World Marathon Majors. Complete them all and you earn the coveted Seven Star Finisher Medal, plus bragging rights that last a lifetime. Each race has…

  • Heart Rate Zones: What’s Happening Inside Each Zone

    In the last Sweat Science, we broke down why formulas like 220 minus age don’t cut it, how to actually find your real heart rate anchors, and why zones aren’t neat boxes but overlapping waves. This time, let’s go one step further. Instead of just numbers on your watch, we’ll look at what’s actually happening…

  • Heart Rate Zones: How to Find Yours and What They Really Mean

    Every running app loves to spit out “zones.” Zone 2, Zone 5, red bars, green bars, nice colors — but here’s the truth: heart rate training is highly individual. The numbers on your watch are only a starting point. The real system is about how your body reacts. The problem with “220 minus age” Most…