Rowan Mercer writes at the intersection of movement, work, and attention. Over the past decade, Mercer has helped desk-bound teams design workdays that protect posture, manage stress, and build baseline strength without sacrificing focus. Drawing on biomechanics, occupational health, and behavioral design, Mercer turns dense research into precise, five-minute practices that fit between emails and meetings. The core belief is simple: the workspace can be a training environment when you know which levers to pull-micro-workouts, ergonomic micro-shifts, and cortisol-aware routines that run on autopilot. Mercer's workshops and essays have guided thousands of professionals toward bodies that support their best thinking; this book distills that approach into a clear framework for the modern 9-to-5.