Why do we eat? Nutrition part 1
Why do we eat? It sounds like a simple question. But when we look closer, the answer is more layered than we might think. Eating is not just about satisfying hunger. It’s a biological necessity, a nutritional responsibility, and a deeply human experience. At CrossFit Kreis 9, we know that before talking about what or how much to eat, […]
Why we chose to be a coaching gym
Choosing to be a coaching gym wasn’t a branding decision—it was a commitment to deliver the highest value possible to our members in the time they have. Because in a world where everything from workout plans to meal suggestions can be done by AI, one thing hasn’t changed: no one gets fitter without putting in the work themselves. […]
Client Success Story: Alperen
From HIIT fatigue to long-term strength: How Alperen found progress through coaching, curiosity, and consistency “I’m a curious person by nature,” says Alperen Tügen, a 30-year-old doctoral researcher in Physics at ETH Zurich. “I experiment for a living — and I love experimenting in life, too.” That curiosity is exactly what led him to CrossFit […]
Are you skipping zone 2 training?
When we talk about fitness, flashy usually wins. Heavy barbells, intense metcons, maximal lifts, and advanced gymnastics often steal the spotlight. But behind every sustainably fit, healthy, and high-performing body lies a quiet, often ignored foundation: basic conditioning—also known as Zone 2 training. And if you’re skipping it, you’re missing a crucial piece of your long-term health […]
Why high-intensity training matters—and how CrossFit gets it right
If you’ve been exercising regularly but feel like you’re stuck in a plateau—or if you’re new to fitness and want the biggest return on your time—there’s one approach backed by both science and experience: high-intensity training. High-intensity training isn’t just another fitness trend. It’s a highly effective way to build strength, improve endurance, sharpen your brain, […]
Too much training vs. too much fitness: know the difference
Too much training is not the same as too much fitness. Let’s clear up a common misconception: You can’t be too fit. Fitness is your body’s capacity to handle physical, mental, and emotional challenges. It allows you to lift, move, play, recover, and thrive—at every age and stage of life. The fitter you are, the […]
5 functional strength training exercises everyone should be doing (but probably aren’t)
Functional strength training exercises go far beyond the barbell basics—they build the kind of real-world strength that helps you carry groceries, climb stairs, play with your kids, and stay injury-free. While squats, deadlifts, and presses will always have their place, these five underrated movements are the secret sauce to moving better, aging stronger, and living more […]
CrossFit for parents: When time and bandwidth are short, it delivers
Is CrossFit for parents?If you’re juggling kids, work, household logistics, and the never-ending to-do list, it’s a fair question. With so little time and mental space left for yourself, how could something as intense-sounding as CrossFit possibly fit? Surprisingly well. At CrossFit Kreis 9, we’ve built our approach around people just like you—parents who want […]
The 5 key drivers of longevity (and how to take control of yours)
When it comes to living longer and staying healthier, understanding the drivers of longevity is essential—not just for extending your years, but for improving their quality. Longevity isn’t about luck or perfect genetics. It’s built on daily habits and consistent effort in a few critical areas. In this article, we’ll cover the five most important drivers of longevity, […]
Can a fit body handle a bad diet better? Here’s what you need to know
In our last blog post, we answered the common question: “Can you out-train a bad diet?” (Spoiler: no.) But that’s not the end of the story. There’s another side to the conversation—and it’s good news. Can a fit body handle a bad diet? Yes, it can. If your usual habits are strong, your nutrition is mostly solid, and you […]