The 25/5 cycle

Work in one 25-minute focus sprint, then take a 5-minute break — repeat.

Why it works

A fixed, short interval converts a vague "work on the project" into a concrete, finishable unit, which lowers the activation cost of starting. The looming break also exploits the fact that attention degrades over time: a known endpoint lets you spend effort freely now because rest is scheduled, not earned by exhaustion.

How to do it

1. Pick one task and set a timer for 25 minutes.
2. Work on only that task until the timer rings — no task-switching.
3. Take a 5-minute break away from the screen, then start the next sprint.
4. After four sprints, take a longer 15–30 minute break.

Evidence

Timeboxing and scheduled breaks are consistent with research on attention restoration and on the motivating effect of proximal, finishable subgoals. The exact 25/5 ratio is Cirillo’s practical heuristic, not a tested optimum. (mechanistic)

No strong trial establishes 25 minutes as superior to other intervals; the right length is individual and task-dependent.

Common mistake

Treating 25 minutes as a hard ceiling — stopping mid-flow when you finally have momentum. The interval is a floor for starting, not a guillotine for deep work.