How to Improve Focus and Concentration: What Works

Almost everyone has days when they read the same paragraph three times, or open a document and find themselves in their inbox ten minutes later. That is normal. Attention is limited, and phones and modern work are built to compete for it. The encouraging part is that focus depends heavily on things you can change: how rested you are, what is interrupting you, and how your work is set up.

This guide covers what usually gets in the way, the strategies with real evidence behind them, a simple routine to try, signs that it is worth getting checked out, and an honest look at where apps fit.

First: what focus actually is

Concentration is the ability to point your attention at one thing and keep it there while other things compete for it. It is not one fixed trait. It draws on a few related abilities: staying with a task over time, filtering out distractions, and switching on purpose when you decide to, rather than being pulled away.

Two things follow from that. First, attention does not split well, so every extra stream you add (a chat window, a buzzing phone, a second task) leaves less for the main one. Second, focus depends on your state and surroundings as much as your willpower. The same person concentrates very differently after a short night, in a noisy room, or with a worry on their mind. State and setting are things you can change, which is why the strategies below tend to work better than simply trying harder.

What usually gets in the way

Not enough sleep. The National Heart, Lung, and Blood Institute (NHLBI) says sleep deficiency can cause problems with learning, focusing, and reacting, and that people who are short on sleep may take longer to finish tasks and make more mistakes.

Interruptions and task switching. In a well-known set of experiments, Rubinstein, Meyer, and Evans found that switching between tasks carries a time cost, and that the cost grows as the rules of the tasks get more complex. Notifications matter even when you ignore them: a 2015 study by Stothart and colleagues found that phone notifications alone significantly disrupted performance on an attention-demanding task, even though participants never touched their phones. The effect was comparable in size to actually making a call or sending a text.

A crowded mind. Stress, worry, and low mood pull attention inward, and an unresolved problem that keeps resurfacing competes with whatever you are trying to do. Persistent trouble concentrating can also be a sign of something worth discussing with a doctor, which we cover below.

Vague tasks. “Work on the report” is hard to start and easy to drift away from. “Draft the two-paragraph summary” gives your attention somewhere specific to go.

Strategies with good evidence behind them

Protect your sleep first

If you change only one thing, make it sleep. NHLBI says experts recommend that adults sleep 7 to 9 hours a night. The CDC’s tips for better sleep are simple and worth taking literally:

• Go to bed and get up at the same time every day.
• Turn off electronic devices at least 30 minutes before bedtime.
• Avoid caffeine in the afternoon and evening.
• Avoid large meals and alcohol before bedtime.
• Keep your bedroom quiet, relaxing, and cool.
• Exercise regularly and eat a healthy diet.

If you regularly spend enough time in bed but still feel very sleepy during the day, mention it to a doctor. There is more on this in the section on professional evaluation.

Cut interruptions at the source

Willpower is a weak defense against a buzzing phone. Change the setup instead.

• Use the focus tools already on your phone. Apple describes iPhone’s Focus feature as a way to concentrate by minimizing distractions. It can silence all notifications or allow only the people and apps you choose. On Android, Digital Wellbeing’s Focus mode pauses the apps you pick, so you cannot use them and do not get their notifications while it is on.
• Put distance between you and your phone. During a focus block, leave it in a drawer, a bag, or another room. When checking takes effort, it becomes a choice rather than a reflex.
• Batch your messages. Check email and chat at set times, such as late morning and mid-afternoon, rather than all day. If your job needs quick replies, agree on one channel for genuinely urgent things (a phone call, for example) so you can close the rest with a clear conscience.
• Close what you are not using. One window, one document, and only the tabs this task needs.

Do one thing at a time

What feels like multitasking is usually rapid switching, and each switch has a cost. Because those costs rise with complexity, demanding work is exactly the kind that suffers most. A practical habit: keep a notepad beside you during a focus block. When an unrelated thought or to-do pops up, write it down and go back to the task. You can deal with the list at your next break.

Work in planned blocks, with real breaks

Timed blocks take the “how long should I keep going?” decision off your plate. The best-known version is the Pomodoro Technique, created by Francesco Cirillo: work for 25 minutes, take a short break, and take a longer break after a few rounds. Some people prefer longer blocks, such as 45 or 50 minutes, for deep work. The exact numbers matter less than having a clear start, a clear stop, and one task in between.

Be realistic about what breaks do. A 2022 meta-analysis by Albulescu and colleagues looked at micro-breaks of 10 minutes or less. It found small but statistically significant gains in how energetic people felt and reductions in fatigue. The effect on overall performance was small and not statistically significant, and performance gains showed up mainly on less demanding tasks. Longer breaks were linked to bigger performance gains. In practice, short breaks help you keep going, and after a long stretch of hard thinking it is worth taking a proper break away from the screen, such as a walk or a meal.

Decide when, where, and how in advance

Goals like “focus more this afternoon” are easy to drift past. A more effective habit is an if-then plan, which researchers call an implementation intention: you name the situation and the action ahead of time. In a meta-analysis of 94 independent tests, Peter Gollwitzer and Paschal Sheeran found that these plans had a medium-to-large positive effect on reaching goals. The benefits covered getting started and shielding a goal from unwanted influences once you are underway.

A few examples to adapt:

• “If it is 9:00 and I have my coffee, then I will open the draft and work for 45 minutes with my phone in the kitchen.”
• “If I notice I have opened a news site during a focus block, then I will close it and write one sentence.”
• “If a colleague messages during a block, then I will reply at the break unless it is marked urgent.”

Stay physically active

For adults, the CDC’s summary points to benefits for sleep, anxiety, and long-term thinking skills rather than an instant concentration boost. The CDC says regular physical activity can help keep your thinking, learning, and judgment skills sharp as you age, and help you sleep better. Some benefits arrive right after a session of moderate-to-vigorous activity: improved thinking in children ages 6 to 13, and reduced short-term feelings of anxiety in adults.

The CDC recommends that adults get 150 minutes of moderate-intensity activity a week, or 75 minutes of vigorous activity, plus at least 2 days of muscle-strengthening activity. A brisk walk at lunch or before a demanding task is an easy way to fit some of that into a workday.

Use caffeine with care

Plenty of people use coffee or tea to feel more alert, and in moderation that is fine. The FDA says that for most adults it has cited 400 milligrams a day, about two to three 12-ounce cups of coffee, as an amount not generally associated with negative effects. People vary widely in how sensitive they are, and too much can cause insomnia, jitters, and anxiety. If you are pregnant, trying to become pregnant, breastfeeding, or have a health condition or take medication, the FDA recommends asking your health care provider whether to limit caffeine.

Timing matters as much as amount. In a 2013 study by Drake and colleagues, 400 milligrams of caffeine taken six hours before bed still significantly disrupted sleep. Since sleep is your biggest lever for focus, keep caffeine to earlier in the day, in line with the CDC’s advice to avoid it in the afternoon and evening.

Make the work easier to start

Starting is often the hardest part. Before each block, write down the very next physical step (“open the budget spreadsheet and fill in March”), not the whole project. If you are stuck, set a timer for 10 minutes and give yourself permission to stop when it rings. Often you will keep going.

Try a short mindfulness practice, with modest expectations

Some people find that a few minutes of breath-focused meditation makes it easier to notice when their mind has wandered and bring it back. The research is still developing: the National Center for Complementary and Integrative Health notes that much of the research on meditation has been preliminary or not scientifically rigorous. Treat it as something to try rather than a proven fix. Our meditation for beginners guide explains how to start.

A simple plan to start

Try this for two weeks, then keep what helps.

1. Set a fixed wake time and a bedtime that allows 7 to 9 hours of sleep. Screens off 30 minutes before bed.
2. Plan tomorrow’s first focus block tonight. Write the one task and its first step on a sticky note.
3. Protect one or two blocks a day at the time you usually feel sharpest. Many people find that is mid-morning, but watch your own pattern.
4. Before each block, turn on your phone’s Focus mode, put the phone out of reach, open only what you need, and keep a notepad for stray thoughts.
5. Work for 25 to 50 minutes, then take a real break. Stand up, move, get some water, look out a window.
6. Batch messages at two or three set times a day.
7. Move most days. About 30 minutes of brisk walking on five days a week adds up to the CDC’s 150 minutes.
8. Keep a two-line log. Each evening, rate your focus from 1 to 5 and note how long you slept. After two weeks, look for patterns.

On a bad focus day, shrink the goal rather than giving up. Use 10- or 15-minute blocks, start with the easiest piece of the task to build momentum, change rooms, or take a short walk outside. If you slept badly, move your most demanding work to tomorrow if you can and use today for routine tasks.

When focus problems may need a professional evaluation

Everyone has off days and off weeks, especially during stressful periods. It is worth talking to a doctor or a licensed mental health professional if:

• Trouble concentrating has lasted several weeks and has not improved after you have worked on sleep and interruptions.
• It is affecting your work, studies, relationships, or safety, for example while driving.
• It comes with low mood, loss of interest in things you usually enjoy, or constant worry.
• You feel very sleepy during the day despite spending enough time in bed, or someone has noticed loud snoring or pauses in your breathing at night.

Several conditions can affect concentration, and it is better to rule them out than to guess. The National Institute of Mental Health (NIMH) lists difficulty concentrating, remembering, or making decisions among the symptoms of depression, and having a hard time concentrating among the signs of generalized anxiety disorder. NHLBI notes that the daytime sleepiness that comes with sleep apnea can lead to problems with learning, focusing, and reacting.

Some adults also wonder about ADHD. NIMH explains that adults can have ADHD, and that inattention symptoms include difficulty paying attention, staying on task, or being organized. In adults with ADHD, NIMH says, these symptoms are more severe, frequent, and persistent, interfere with daily life, show up across multiple situations, and last at least 6 months. An evaluation by a primary care provider or mental health professional can include clinical interviews, rating scales, and symptom checklists. An online quiz is not a diagnosis, and plenty of people who struggle to focus do not have ADHD, so an evaluation is the way to get a clear answer either way. If you are curious about apps in this context, our guide to brain training apps for ADHD covers what they can and cannot do alongside proper care.

Your primary care provider is a good first stop and can refer you to a specialist if needed. If cost is a barrier, SAMHSA’s National Helpline at 1-800-662-4357 is a free, confidential, 24/7 referral service, and it can often point you to facilities that charge on a sliding fee scale or accept Medicaid or Medicare. Community mental health centers are another low-cost option in many areas, and our guide to the cheapest online therapy covers more affordable routes.

Where focus apps fit in

Apps are useful when they make the habits above easier, and disappointing when you expect them to do the work. Start with the free Focus tools built into your phone, then consider an app for a specific problem:

• Blocking distractions. Freedom is an app and website blocker that syncs across Mac, Windows, iOS, Android, and Chrome, and lets you schedule focus sessions.
• Making focus sessions feel rewarding. In Forest, a virtual tree grows while you stay focused. Open another app, and the tree dies.
• Keeping the routine going. A habit tracker can help you stick with a sleep schedule, daily focus blocks, or regular exercise.

Our roundups of the best focus apps for adults and the best habit tracking apps compare prices, platforms, and trade-offs.

Brain training games are a different category, and expectations matter. A major 2016 review by Simons and colleagues found extensive evidence that brain-training programs improve performance on the trained tasks, less evidence for closely related tasks, and little evidence that training improves everyday cognitive performance. A game can be an enjoyable daily habit, but it is unlikely to fix concentration at work on its own. Our guide to whether brain training apps actually work goes deeper.

The bottom line

Better focus mostly comes from unglamorous basics: enough sleep, fewer interruptions, one task at a time, planned blocks with real breaks, if-then plans for your hardest work, and regular movement. Pick two of these, try them for two weeks, and keep a quick log so you can see what actually helps. Use apps to support those habits, not to replace them. If concentration stays hard despite real changes, or it comes with low mood, constant worry, or heavy daytime sleepiness, talking to a doctor is a sensible next step.

Sources

• How Sleep Affects Your Health, National Heart, Lung, and Blood Institute
• About Sleep, including tips for better sleep, CDC
• Benefits of Physical Activity, CDC
• Spilling the Beans: How Much Caffeine Is Too Much?, FDA
• ADHD in Adults: 4 Things to Know, National Institute of Mental Health
• The attentional cost of receiving a cell phone notification, Stothart and colleagues, 2015
• A systematic review and meta-analysis of micro-breaks, Albulescu and colleagues, 2022, PLOS ONE
• Implementation intentions and goal achievement: a meta-analysis, Gollwitzer and Sheeran, 2006

One important note: if you are in crisis or considering harming yourself, please reach out now. In the US, call or text 988 for the Suicide & Crisis Lifeline. Immediate human support is available.