Yirika

How-To · 8 min read

How to focus on one thing at a time: a guide to single-tasking

Multitasking often feels productive but usually reduces efficiency. This guide explains how to transition to single-tasking, improve your concentration, and finish your to-do list faster.

By Mark Barclay · Curator, The Yirika Project

To focus on one thing at a time, you must remove external distractions, choose a single objective for a set period, and commit to finishing it before moving on. This practice, known as single-tasking, involves managing your environment and mental energy to avoid the cognitive cost of switching between different activities.

Why is it difficult to focus on one task?

Modern environments are designed to fragment our attention through notifications, open-plan offices, and the ease of switching browser tabs. Research suggests that the human brain is not biologically wired to multitask; instead, it performs "task switching," which incurs a time penalty every time you move your focus. Studies from organizations like the American Psychological Association show that shifting between tasks can reduce productive time by up to 40%.

When you try to do two things at once, your brain must repeatedly deactivate the rules for one task and activate the rules for the next. This creates "attention residue," where thoughts of the previous task linger and interfere with your current work. Over time, this behaviour trains your brain to seek constant stimulation, making deep concentration feel uncomfortable or boring. Developing personal development skills in focus requires re-training your brain to tolerate stillness and sustained effort.

How do you start single-tasking?

You start single-tasking by defining a clear starting point and a specific duration for your work. You cannot focus on "work" in a general sense; you must focus on a specific action, such as writing a report or replying to three emails. Below are the steps to transition from a scattered workflow to a focused one.

1. Audit your current distractions

Before you can focus, you must identify what pulls you away. Distractions are usually either external (your phone, colleagues, noise) or internal (anxiety, hunger, wandering thoughts). Spend one day noting down every time you stop your primary task to do something else. Most people find they check their phones or email over 50 times a day without a specific reason.

2. Create a physical focus zone

Your environment dictates your behaviour. If your phone is visible on your desk, your brain uses energy to resist the urge to check it. Place your phone in another room or a drawer. Clear your physical desk of everything except what you need for the task at hand. If you work in a noisy area, use noise-cancelling headphones or a white noise machine to create an auditory boundary.

3. Use time-blocking techniques

Assign specific tasks to specific hours of the day. Instead of a long to-do list, give each item a "home" on your calendar. This reduces the decision fatigue of wondering what to do next. The Pomodoro Technique is a common starting point, where you work for 25 minutes and then take a 5-minute break. This creates a psychological "finish line" that makes it easier to stay focused.

4. Manage your digital environment

Close every browser tab that is not related to your current task. If you are writing a document, close your email client and messaging apps like Slack or Teams. If you find yourself reflexively opening news sites or social media, use a website blocker to restrict access during work hours. You can find more practical tips in our life hacks section for managing digital clutter.

What are the benefits of single-tasking versus multitasking?

Single-tasking allows for "deep work," a state of concentration that produces higher-quality results in less time. Multitasking creates a false sense of busyness while increasing the likelihood of errors and mental exhaustion. By focusing on one thing, you lower your stress levels because your brain is not constantly monitoring multiple unfinished loops.

Feature Single-tasking Multitasking
Cognitive Load Low: Focus is on one set of rules. High: Brain switches rules constantly.
Error Rate Lower: Details are easier to spot. Higher: Mistakes increase by roughly 20-30%.
Stress Levels Lower: Sense of completion and calm. Higher: Increased cortisol from fragmentation.
Quality of Output Higher: Allows for complex problem solving. Lower: Usually results in surface-level work.
Time to Finish Faster: No "switching cost" delays. Slower: Tasks take 1.5x to 2x longer.

How to handle interruptions effectively

Interruptions are inevitable, but they do not have to ruin your focus for the entire day. The key is how you re-enter your state of focus. If a colleague asks a question or an urgent notification appears, use the "park" method. Briefly note down exactly where you left off and what your next step was going to be. This reduces the "attention residue" when you return to the task.

  • The Two-Minute Rule: If an interruption requires an action that takes less than two minutes, do it immediately to clear it from your mind. If it takes longer, schedule it for later.
  • Signal your unavailability: If you work in a shared office, use a visual cue like headphones or a small sign to show you are in a deep-work block.
  • Schedule 'open' time: Set aside 30 minutes twice a day specifically for reactive tasks, like answering questions or checking messages. This protects your focused hours.
  • Brain dump: If an unrelated idea pops into your head while you are working, write it on a notepad and immediately return to your task. Do not act on it until your current block is finished.

Improving your concentration is similar to physical exercise. You may only be able to focus for 10 or 15 minutes at first. Over several weeks of consistent single-tasking, you will likely find that you can sustain focus for 60 to 90 minutes. This level of concentration is where most significant progress in wealth management or career growth happens.

Frequently asked questions

Does listening to music count as multitasking?

It depends on the type of music and the task. Instrumental music or white noise can actually help block out distractions and improve focus for some people. However, music with lyrics often competes for the same part of the brain used for reading and writing, which can reduce your efficiency.

How long should a single-tasking session last?

Most adults find their peak concentration lasts between 60 and 90 minutes. After this point, cognitive performance usually begins to decline. It is best to work in blocks of 25 to 50 minutes followed by a short break to move your body and rest your eyes.

What if my job requires me to be reactive?

Even in reactive roles, you can single-task by "batching" your reactivity. Instead of checking every notification as it arrives, check them every 20 minutes. This allows you to give 20 minutes of undivided attention to a specific task before switching to communication mode.

Can I train my brain to focus better?

Yes, focus is a cognitive skill that improves with practice. Activities like reading long-form books, meditation, and consciously avoiding your phone during "boredom" moments (like standing in a queue) help strengthen your attention span. Consistency is more important than the length of any single session.