A Simple Way to Think About Mouthfill In this document, I'm going to talk about my take on the most popular mouthfill drill - the surface charge. To understand everything I am about to discuss, it helps to think about mouthfill like this. At some point before reaching the residual volume of the lungs, we bring up as much air as we can store above the glottis - filling the throat and the oral cavity. I like to think of this volume as the throat and oral cavities' vital capacit

Why Freediving May Be the Most Complete Stress Medicine We've Ever Ignored The Epidemic We've Stopped Questioning Stress has become an epidemic in modern society. But we need to be specific about which kind, because that distinction changes everything. What we're drowning in — the damaging kind — is chronic stress : prolonged, low-level, unresolved pressure that never fully switches off. It hums in the background of daily life. It has been linked to a staggering range of phys

Do you feel like equalization becomes more difficult the deeper you dive? You might notice it starting as shallow as 5 meters, or it may only show up past 30 meters. Either way, the experience is the same: what felt smooth and easy near the surface suddenly requires more effort. Eventually, it can feel like you’ve hit a wall. This article explains why that happens — and what you can do about it. The End-Range Problem To understand what’s happening, it helps to compare equaliz

Scroll down and fill in the form below to book a consultation Welcome to this introduction to the anatomy of Frenzel. If you have made it this far, you already know something important: you can physically equalize. You simply need to learn the skill. That may sound easier said than done. Until now, it is likely that no one has clearly explained this to you. But trust me with clear communication and deliberate practice, you will learn it. Frenzel equalization uses a specific c