Focus

Journal Focus

You open your laptop to answer one email. A Slack notification appears. You check it. While you are there, another message comes in. Your phone lights up. You glance at it. Someone has sent you a link. You open it “for a second”. Twenty minutes later, you are technically still working. But the email? Still unanswered.

This is one of the stranger parts of modern life: we can spend an entire day responding to things and still wonder why it feels as though we never properly focused on anything. The problem may not be that we have forgotten how to concentrate. It may be that we rarely give our attention enough time to settle.

The Notification Is Small. The Interruption Isn’t.

A notification can take less than a second to appear. Its effect on attention can last longer.

A 2026 study examining social-media-style notifications found that alerts temporarily slowed cognitive processing for approximately seven seconds, even when the notification itself was brief. Interestingly, the researchers found that the frequency of notifications and habitual checking behaviour mattered more than total time spent on the phone. Seven seconds does not sound dramatic.

But multiply it by dozens, or hundreds of interruptions. Email. WhatsApp. Slack. Instagram. Calendar reminders. Breaking news. A delivery notification. Another email. The real cost is not necessarily the number of seconds spent reading each message. It is what happens to the task you were doing before it arrived.

Your Brain Does Not Simply Press Pause

Imagine you are writing something that requires thought. You are holding an idea in your mind, deciding where it goes, connecting it to the sentence before it. Then your phone buzzes. Even if you answer the message quickly, you do not necessarily return to your original task in exactly the same mental state.

Research on task switching describes something called attention residue: part of our attention can remain attached to the previous task when we move to the next one, particularly when we have not mentally disengaged from what we were doing. Research on interruptions and task transitions has found that switching between demands can have cognitive and performance consequences depending on the circumstances of the interruption.

Which means this: You may be back at your desk. Your eyes may be back on the document. But part of your mind may still be somewhere else. That is what we mean here by an attention hangover. Not a medical diagnosis. Just a useful way of describing the feeling of carrying fragments of one task into the next.

You Don’t Even Have to Open the Notification

This is perhaps the most annoying part. Ignoring your phone does not always mean the phone has failed to interrupt you. Research has shown that simply receiving a mobile-phone notification can impair performance on an attention-demanding task, even when the person does not pick up the phone or respond to the message. Think about what happens when you see: 1 new message

You may decide not to open it. But your brain can still begin asking questions. Who is it? Is it important? Should I check? Can it wait? That tiny red badge has already become another piece of information your attention has had to process. And because notifications are designed to be noticeable, that is not particularly surprising. They are doing exactly what they were built to do. Getting your attention.

We Call It Multitasking. It Is Usually Switching.

There is something flattering about the word multitasking. It sounds efficient. Capable. Like something a very organised person with a colour-coded calendar should be excellent at. But when two activities both require meaningful attention, what we are often doing is not processing them simultaneously. We are switching between them. Read the email. Return to the spreadsheet. Reply to the message. Remember where you were in the spreadsheet. Check another email. Try to return to the thought you had before. That switching has a cost.

A 2025 meta-analysis of 27 experiments examining mobile-phone distraction during learning found a negative, medium-sized effect on immediate memory performance among young adults. The context was learning, but the broader point is useful: dividing attention can make it harder to properly process and retain information. Which may explain a very modern phenomenon: You read the same paragraph three times. And somehow still have no idea what it said.

The Problem Isn’t Necessarily Screen Time

“Reduce screen time” has become the wellness equivalent of “drink more water”. Usually sensible. Not always specific enough to be useful. Because two people could spend the same number of hours on their phones and have completely different relationships with them.

One person may spend an uninterrupted hour reading. Another may check their device every two minutes across the entire day. The 2026 notification study is interesting precisely because frequency of interaction, alerts and checking behaviour,  was more closely associated with disruption than total phone-use duration.

That changes the question. Instead of asking: How many hours am I on my phone? It may be more useful to ask: How often is my attention being broken? Because concentration depends not only on how much time you have. It depends on whether that time remains intact.

Why You Can Feel Busy but Mentally Unproductive

This is where constant connectivity becomes deceptive. Notifications create activity. They give us things to respond to. And responding feels productive. Clear the inbox. Answer the message. Check the update. Approve the request. Repeat. By 5pm, you may have dealt with dozens of small demands. And still feel strangely dissatisfied. That does not necessarily mean you did nothing. It may mean you spent much of the day in reactive attention rather than sustained attention. You were deciding what deserved your focus based on what arrived next. Not necessarily on what mattered most. And there is an enormous difference between those two things.

Focus Does Not Always Need More Stimulation

When concentration drops, our instinct is often to add something. Another coffee. A stronger coffee. A playlist. A productivity app. A new tab telling us how to be more productive. Sometimes what attention needs is not another input. It needs fewer inputs.

This distinction matters to us at NOA because focus is often marketed as a feeling of being highly stimulated. But feeling stimulated and being able to stay with one thought are not necessarily the same thing. You can feel extremely alert and still be unable to finish a page. You can have plenty of physical energy and very little mental continuity. Real concentration can be much quieter than that.

You Probably Don’t Need to Throw Your Phone Away

None of this requires moving to a cabin without Wi-Fi. Notifications are useful. Some are necessary. The point is not to turn modern technology into the villain of the story. It is to recognise that every alert is making a small request for your attention. And not every request deserves an immediate answer.

A few simple changes can make a surprising difference: Turn off notifications that do not genuinely need to reach you in real time. Group messages and emails into specific checking periods when your work allows it. Use Do Not Disturb when you are doing something that requires sustained thought. Keep your phone out of your direct line of sight during deeper work. And perhaps most importantly, give yourself permission not to be instantly available. The world is unlikely to collapse because you answered an email 27 minutes later.

Protecting Attention May Be the New Productivity

For years, productivity culture was obsessed with adding. More tools. More optimisation. More morning routines. More ways to squeeze something useful out of every minute. But perhaps one of the more valuable skills now is the opposite. Protecting a block of time from being filled. Allowing one task to remain the only task. Finishing a thought before beginning another. Because focus is not simply something you either have or do not have. It is also something your environment can protect, or repeatedly interrupt. And if your attention feels unusually fragmented lately, the answer may not be that you need to try harder. You may simply need fewer things competing to be noticed.

FAQ

Can notifications affect concentration even if I do not open them?
Yes. Research has found that receiving a mobile-phone notification can disrupt performance on an attention-demanding task even when participants do not interact with the device.

How long does a notification affect attention?
A 2026 experimental study found a temporary slowdown in cognitive processing lasting approximately seven seconds after smartphone-style social media notifications. The exact effect will vary depending on the person, task and type of notification.

Is multitasking bad for focus?
When two tasks both require attention, people often switch between them rather than truly processing both at once. Research on task transitions and mobile distraction suggests that frequent switching can interfere with attention, performance and immediate memory.

Is reducing screen time enough?
Not necessarily. Recent research suggests that the frequency of notifications and phone-checking behaviour may matter significantly, not simply total time spent using a device.

Does NOA Focus contain caffeine?
No. NOA Focus is caffeine-free and is designed as nutritional support for cognitive function, mental clarity and mental performance rather than as an instant stimulant.