Out of all the chemicals and hormones, learning about cortisol has probably changed me the most. It helped me realize something I have never been taught: I’m made of rhythms. And so are you. We cycle through energy highs and lows roughly every 90 minutes. Our breath moves in waves. Body temperature rises and falls. Even immune and repair functions follow daily patterns, peaking while we sleep. Cortisol plays a central role in all of this. It shapes your sleep-wake cycle, your focus, your motivation, your recovery. It helps you rise to meet challenges, and rest when the challenge is over. What’s made the biggest difference for me is learning to work with those rhythms instead of trying to override them. When I feel a dip in energy, I don’t force or push anymore. I run. I nap. I breathe. Then I return clearer, sharper, and more motivated. I now finally understand and appreciate that this isn’t indulgent, selfish or weak. It’s not about “self-care.” It’s about working with your body. And the irony is: you end up getting much more done, and you have more fun doing it 🙂 Cortisol: the rhythm & resilience hormone Here's something I really dislike about social media: oversimplification. Labeling cortisol as purely a "stress hormone" and implying...

You read the books, you listen to the podcasts, you gather advice, to-do lists, strategies, frameworks. And yet, you stay stuck. Why? Not because you’re missing something out there. But because you lack access to what’s already in here—the tools and resources hardwired into you. So if you’ve been circling a specific problem or decision, try the below formula for one week. I guarantee you’ll make progress. If not, get your money back. Every morning or evening, right after or right before going to bed, block 15-20 minutes and do this: Step 1 — Kidlin’s Law: write it out Write out in detail what the problem is. What do you know? What assumptions are you making? You’re not necessarily solving it right away. You’re simply describing it in as much detail as possible. Bringing some order to the chaos in your head. Very important: pen and paper only. Then every day, add any new thoughts, ideas, and insights. No editing. No judging. Just write down exactly what comes up. Step 1b - Keep your phone far away from you A study testing the “brain drain” hypothesis showed that “the mere presence of your smartphone occupies limited-capacity cognitive resources, thereby leaving fewer resources available for other tasks.” In simple terms: when you try...

It’s funny how often people are skeptical about breathwork. Then as soon as I tell them a few facts about how breathing actually works, their whole attitude changes. They’re surprised. Intrigued. Because even though we breathe all day, every day, most of us know shockingly little about it. Here’s one of my favorite “well… did you know…” When we think of breathing, we typically think of the lungs. And while the lungs are a critical organ, they’re just the site where the gas exchange happens. Oxygen in, carbon dioxide out. But… they’re not what drives your breath. The real engine of your breath is in your brain. Deep in the brainstem, there’s a tiny cluster of neurons called the preBötzinger complex. It’s this group of neurons that generates the rhythm of your breath automatically, moment by moment. Here’s why this is so cool: The brain-breath loop is bi-directional. Your brain influences your breath. Your breath influences your brain. Meaning: Change your breathing pattern, and you change your brain activity. One of the most powerful ways to do that? Slow, nasal breathing. A few things happen when you breathe slowly, in and out through the nose: For one, you’re dialling up your prefrontal cortex. That’s the part of your brain that helps you focus, regulate emotions, and...