Your chair knows you better than you think. It witnesses your morning energy, afternoon slumps, deadline marathons, and those moments when you lean back to gather your thoughts. Yet most of us accept whatever position our chair offers, adjusting ourselves instead of adjusting the chair. This guide walks you through the five essential adjustments that transform any ergonomic office chair from a passive seat into an active partner in your daily wellbeing, showing you exactly how to harness each feature for better comfort, focus, and long-term health.