Coding is cognitively demanding. You hold abstract structures in working memory — data models, control flow, API contracts — while simultaneously writing syntactically correct code. This kind of mental load depletes attention over time.
The Pomodoro Technique addresses this by limiting work to 25-minute blocks with enforced breaks. The short work window is long enough to make real progress but short enough to maintain intensity. The breaks prevent the slow attention decay that happens during multi-hour coding sessions.
For developers specifically, Pomodoro helps with task scoping. Before starting a pomodoro, you choose one thing to work on. This reduces the common pattern of switching between files, tasks, and contexts during a single session. One pomodoro, one objective.