The 25-minute rule: making the Pomodoro technique work for you

By Tophik · Updated 14 October 2026 · 7 min read

Some days the hardest part of work is starting. Other days you start well and look up three hours later with a stiff neck and nothing finished. The Pomodoro technique is a simple answer to both problems: work for a fixed, short block, then stop.

It is one of the most popular focus methods in the world, and also one of the most misunderstood. This guide explains how it works, what the evidence says (including where it is weaker than people claim) and how to adapt it to real work.

In this guide

1. What the technique is
2. Why it can work: what the research says
3. How to run your first day
4. Adjusting the lengths
5. What to do in the break
6. Handling interruptions
7. Common mistakes
8. Questions people ask

1. What the technique is

The Pomodoro technique was created by Francesco Cirillo in the late 1980s, when he was a university student. He used a tomato-shaped kitchen timer (pomodoro is Italian for tomato), and the name stuck. The classic method has five steps:

1. Choose one task.
2. Set a timer for 25 minutes and work only on that task.
3. When the timer rings, stop, and mark one “pomodoro” on paper.
4. Take a 5-minute break.
5. After four pomodoros, take a longer break of 15 to 30 minutes.

That’s all. The power is not in the number 25. It is in three rules hidden inside the method: one task at a time, a clear end point, and a break that happens whether you feel like it or not.

2. Why it can work: what the research says

There is surprisingly little research on the Pomodoro technique itself, but there is useful research on the things it relies on: breaks, interruptions and attention.

Fixed breaks versus “when I feel like it”

In a 2023 study published in the British Journal of Educational Psychology, researchers at Maastricht University compared students who took breaks whenever they chose with students on fixed schedules: a Pomodoro-style 24 minutes of work and 6 minutes of break, or a shorter 12 and 3. The students who self-regulated studied in longer stretches and took longer breaks, and reported more fatigue and distraction, and less concentration and motivation, than those on a fixed schedule. Importantly, there was no difference in how much work they completed. A fair summary: fixed breaks made the work feel easier, not faster.

Interruptions cost more than time

A frequently cited study by Gloria Mark and colleagues at the University of California, Irvine, presented at the CHI conference in 2008, found something counter-intuitive. People who were interrupted while working on an email task finished in less time, with no loss of quality, but they reported more stress, frustration, time pressure and effort. We compensate for interruptions by rushing, and we pay for it in how we feel. A protected block of time is a way to make interruptions rarer.

Short breaks and staying alert

A 2011 experiment at the University of Illinois, published in Cognition, found that brief diversions from a long, repetitive task prevented the drop in performance that usually sets in over time. To be honest about the evidence: a larger 2012 study did not find the same benefit, so the science on micro-breaks is still being argued. What is well established is the workplace guidance. The HSE says that for screen work, short, frequent breaks are better than longer, infrequent ones, and gives the example that 5 to 10 minutes every hour is better than 20 minutes every two hours.

3. How to run your first day

1. Make a short list of three to five tasks for the day, in order. Big tasks should be split into pieces that fit in one or two blocks: “draft the introduction”, not “write the report”.
2. Remove the obvious distractions before the first block: close email, put the phone face down or in another room, and turn off notifications on the laptop.
3. Start the timer and start the first task, even if you don’t feel ready. The first two minutes are the hardest.
4. When the timer rings, stop, even mid-sentence. Leave a note of the next step so restarting is easy. (Stopping mid-task is a trick many writers use: it is easier to pick up a half-finished sentence than to start a blank page.)
5. Take the break properly (see below), then start the next block.
6. At the end of the day, count your blocks. After a week you’ll know how many focused blocks you really have in a day. For many people it is fewer than they think, and that is useful for planning.

4. Adjusting the lengths

The 25/5 rhythm is a starting point. Different kinds of work suit different lengths:

Whatever you choose, keep the break. The Maastricht study suggests the fixed structure, not the exact number, is what makes work feel less tiring.

5. What to do in the break

A break spent scrolling a phone is not much of a break for your eyes or your attention. Good breaks are short and physical:

• Stand up and move. HSE guidance says breaks should let you stand up and move around, or at least stretch and change posture.
• Look into the distance. Optometrists recommend the 20-20-20 rule: every 20 minutes, look at something about 20 feet (6 metres) away for 20 seconds. A window is ideal.
• Refill your water, step outside for a minute or do one small household job.
• Avoid starting anything you can’t stop in five minutes, like a phone call or a new email thread.

6. Handling interruptions

Interruptions are the reason the method exists. Cirillo’s approach is simple: protect the block, and deal with the interruption at the end of it.

• Internal interruptions (“I must remember to reply to…”) go on a piece of paper next to you. Write it down, return to the task, deal with it in the break.
• External interruptions (a colleague, a message) get a polite “Can I come back to you in fifteen minutes?” Most things can wait that long.
• Real emergencies end the block. That’s fine: start a new one afterwards rather than trying to finish the old one.

7. Common mistakes

• Skipping breaks when it is going well. It feels productive, but it is how the stiff-neck afternoon happens. If you are in the flow, take a shorter break rather than none.
• Using the phone as the timer. Picking up the phone to stop the alarm is an invitation to check messages. A separate timer avoids that.
• Planning too many blocks. If you consistently plan twelve and do seven, plan seven.
• Treating it as a test. The technique is a tool, not an exam. If a block gets interrupted, just start another.

Questions people ask

Does the Pomodoro technique work for everyone?

No method works for everyone. The research suggests fixed breaks make work feel less tiring for many people, but not that they always get more done. Try it for a week and judge by how your days feel.

Is 25 minutes too short for deep work?

Often, yes. Many people use 50/10 for writing or analysis. Keep the structure and change the numbers.

What if my job is full of meetings?

Use blocks in the gaps between meetings for the tasks that need focus, and don’t try to timebox the meetings themselves.

If you’d like a timer that doesn’t live on your phone, our Cadence flip timer starts when you turn it over. Any kitchen timer works, though. The important part is the rhythm, not the tool.

Sources

1. Biwer et al. (2023), Understanding effort regulation: comparing ‘Pomodoro’ breaks and self-regulated breaks, British Journal of Educational Psychology
2. Mark, Gudith and Klocke (2008), The cost of interrupted work: more speed and stress, CHI 2008
3. Ariga and Lleras (2011), Brief and rare mental “breaks” keep you focused, Cognition
4. Helton and Russell (2012), Brief mental breaks and content-free cues may not keep you focused, Experimental Brain Research
5. HSE: Work routine and breaks for DSE users
6. American Optometric Association: Computer vision syndrome