Multitasking has excellent branding.
Answering email during a meeting looks efficient. Keeping several projects open at once can feel responsive. Moving quickly between messages, documents, browser tabs, and conversations creates a satisfying sense that a great deal is happening.
And a great deal is happening.
The question is whether the important work is happening as well as it could.
For many activities we casually describe as multitasking, the brain is not smoothly performing two demanding jobs at the same time. It is switching attention between them. You read part of the report, notice an email, answer it, return to the report, respond to a chat message, remember where you were, and continue.
Each switch can look insignificant on its own. Across an entire day, however, the repeated stopping, remembering, reorienting, and restarting can create a surprising amount of friction.
This does not mean you should single-task your way through life with monastic intensity. Some activities combine perfectly well, especially when one is familiar or relatively automatic. You can walk while having a conversation or fold laundry while listening to a podcast without necessarily creating a cognitive crisis.
The trouble starts when two or more activities all want the same limited resource: serious attention.
Most “Multitasking” Is Actually Switching
Imagine writing a proposal while monitoring email.
For several minutes, you are considering the argument, holding relevant information in mind, and deciding what the next paragraph needs to accomplish. Then an email arrives. You read it, search for the information needed to answer it, send a response, and return to the proposal.
The interruption may have lasted only two minutes.
But the original task does not resume exactly where it left off. You have to find your place, reconstruct what you were thinking, and reload the details that mattered before the email appeared.
The American Psychological Association's explanation of multitasking and switching costs describes the small mental delays that occur when people shift between tasks, particularly when the activities are complex or unfamiliar. Those costs may seem tiny during an individual switch, but repeated transitions can accumulate.
That distinction also explains why multitasking can feel more successful with certain combinations. Stirring soup while chatting with somebody is different from writing a complicated analysis while trying to follow a separate meeting. The more both activities require reasoning, memory, language, or decision-making, the more likely they are to compete.
So the useful question is not, Can humans ever do two things at once?
It is: Do these particular things both need my attention right now?
The problem with multitasking is often not that nothing gets done. It is that every task keeps paying a small restart fee.
Busyness Makes the Switching Hard to See
Task switching is deceptive because the day can look extraordinarily productive from the outside.
You answered twenty-seven emails.
You attended five meetings.
You responded quickly to messages.
You updated two documents.
You checked several small tasks off the list.
You were rarely inactive.
Then late afternoon arrives and the piece of work requiring actual concentration is still waiting.
This is one reason reactive work can become so compelling. Small incoming tasks usually provide clear instructions and quick completion. An email asks a question, you answer it, and the loop closes. A notification appears, you deal with it, and it disappears.
Deep work is less generous. A difficult presentation, analysis, strategy document, piece of writing, or creative problem may require a long period before you receive the psychological reward of obvious progress.
Stanford researchers reviewing the relationship between media multitasking, attention, and memory have found an overall negative association between heavier media multitasking and aspects of memory and sustained attention, while importantly cautioning that those findings do not prove media multitasking itself causes the differences.
That nuance matters. There is no need to claim that every open browser tab is rewiring your brain for the worse.
The practical point is much simpler: constant switching is not a free way to increase capacity.
Being able to respond to many things quickly is a useful skill. It just should not be confused with being able to think deeply about many things simultaneously.
Attention Can Stay Behind When You Switch
One reason a new task can feel strangely difficult immediately after leaving another one is something organizational researcher Sophie Leroy calls attention residue.
Her research at the University of Washington Bothell describes attention residue as the portion of attention that remains attached to a previous task after you have moved to another one. The effect can be particularly relevant when the first task was left unfinished or when you expect to return to it under time pressure.
This is easy to recognize in ordinary life.
You leave a tense meeting and begin writing, but part of your mind keeps replaying what was said.
You interrupt a complicated project to answer several messages, and the project continues occupying mental space while you handle them.
You finish work and sit down to dinner, but some unresolved problem is still quietly running in the background.
The body has moved on.
Attention has not completely followed.
This does not mean every unfinished task needs to be completed before you switch. Real work rarely permits that. Projects may last days or months, and interruptions are sometimes unavoidable.
What helps is giving the brain a clearer place to leave the task.
Before switching, write down where you stopped and what comes next. Instead of closing a document with a vague sense that "there's still so much to do," leave yourself a note such as, "Next: compare Q2 results with last year's figures and rewrite the final paragraph."
That tiny bit of closure can make returning easier because you are not asking your future self to reconstruct the entire mental state from scratch.
You may not be able to finish the task before switching, but you can make it easier for your attention to find its way back.
Some of Your Interruptions Are Coming From You
Notifications deserve criticism, but they are not responsible for every fragmented workday.
Sometimes nothing buzzes.
We simply leave.
A sentence becomes difficult, so we check email. A spreadsheet gets boring, so another tab appears. We wonder whether somebody replied to a message and decide to look. A completely unrelated question occurs to us and suddenly we are searching for the answer.
UC Irvine researcher Gloria Mark has studied real-world digital attention for years. In an interview about her research on focus and digital distraction, she notes that roughly half of observed interruptions in her work have been self-interruptions rather than responses to an external notification.
That changes the problem.
Turning off every alert can help, but it will not completely solve a habit of escaping a task whenever attention becomes uncomfortable.
This is why it is worth noticing when you tend to switch.
Do you check messages when you are bored?
Do you open another tab when you reach a difficult decision?
Do you switch projects whenever progress becomes temporarily unclear?
Do you use email to avoid beginning the larger task on the day's list?
Sometimes what looks like a distraction problem is really a discomfort problem.
If so, the answer is not creating an environment in which distraction becomes physically impossible. It is learning to stay with a task for another few minutes after the easy momentum disappears.
Give Important Work a Clean Runway
You do not need eight uninterrupted hours.
Most people would not know what to do with them if they suddenly appeared.
Start with one protected block.
Choose a task that genuinely benefits from concentration, decide what you are trying to accomplish during that period, and remove the easiest routes into unrelated work.
That might mean closing email, silencing nonessential notifications, putting your phone somewhere less reachable, and shutting browser tabs you do not need.
Cornell University's Learning Strategies Center recommends similar approaches for reducing multitasking and rapid task switching, including focusing on one primary task, planning breaks, and reducing electronic distractions during work that requires attention.
The duration matters less than creating a clear boundary.
Thirty focused minutes can be surprisingly productive when the alternative is ninety minutes of partial work mixed with email, messages, and browsing.
And when the block ends, you can check those things.
That part is important.
Focus does not require pretending communication is irrelevant. It means deciding when communication gets priority and when something else does.
Batch the Work That Naturally Belongs Together
Single-tasking does not mean performing every tiny job in total isolation.
In fact, grouping similar tasks can reduce unnecessary switching.
Answer several routine emails during one communication window. Handle scheduling together. Process expense receipts in one sitting. Return several straightforward calls consecutively.
The advantage is that the mental rules remain relatively similar.
Compare that with an afternoon that goes: write strategy document, answer email, edit spreadsheet, return call, write strategy document, approve expense, attend meeting, write strategy document.
The same number of tasks may still get completed, but the second arrangement repeatedly pulls attention between very different types of thinking.
This is also where the phrase "one thing at a time" needs some flexibility. You do not necessarily have to finish an entire six-week project before opening another one.
Single-tasking works at the scale of the current work session.
For the next forty minutes, this is the thing.
Then you can deliberately switch.
That is very different from allowing every task to remain psychologically active at the same time.
Meetings Deserve Your Attention or Your Absence
Meetings are one of the most socially accepted places to multitask.
The camera is on. Someone else is speaking. Meanwhile, email gets answered, messages get checked, another document is edited, and everybody quietly agrees to call the whole arrangement efficient.
Sometimes the meeting genuinely does not require your full attention. That raises a different question: do you need to be there?
If your presence is necessary, try being present for the portion where your participation matters. You may discover that the meeting becomes easier to follow and requires less catch-up afterward.
If substantial stretches repeatedly provide no value to you and require nothing from you, the better organizational solution may be changing the meeting rather than becoming more sophisticated at doing other work inside it.
This will not always be within your control. But it is worth recognizing that "I multitask during every meeting" can sometimes be evidence of a meeting problem rather than a concentration strategy.
Not Every Interruption Deserves the Same Response
Real life will interrupt you.
A coworker has an urgent question.
A child needs something.
A customer calls.
Plans change.
The goal cannot be building a day so perfectly protected that any interruption feels like an attack on productivity.
Instead, distinguish between necessary switching and habitual switching.
Necessary switching is part of being responsive to life.
Habitual switching is checking something because the current task became mildly uncomfortable.
The first requires flexibility.
The second benefits from a little friction.
Keep a notepad beside you when you work. If an unrelated thought appears, write it down instead of acting on it immediately. "Order printer ink." "Ask Sam about Friday." "Look up that statistic."
The thought now has somewhere to go.
You can return to it later without asking your attention to follow it right now.
Focus is not never getting distracted. It is getting better at deciding which distractions deserve to become detours.
Measure the Work That Moved, Not the Apps You Touched
At the end of a fragmented day, activity can create a convincing illusion of accomplishment.
Try evaluating the day using a different question:
What meaningfully moved forward?
Maybe you finished the analysis.
Solved the difficult problem.
Prepared the presentation.
Made the important decision.
Completed the section that had been hanging over you.
That does not mean routine communication and administration have no value. Organizations depend on them. Homes depend on them too.
But if all visible progress comes from clearing incoming requests while important work repeatedly gets postponed, your attention may be organized around responsiveness rather than priority.
One useful practice is choosing the day's most important concentration task before opening the channels most likely to compete with it.
That does not have to mean completing three hours of deep work before checking email. It might simply mean deciding, "The proposal is today's meaningful work. Email is maintenance."
Now the two kinds of productivity are easier to distinguish.
Your Weekly Five!
- Protect one focus block: Give an attention-heavy task a defined period without unnecessary messages, email, or unrelated tabs competing with it.
- Leave yourself a restart note: Before switching away from unfinished work, write down exactly where to resume so returning requires less reconstruction.
- Batch similar small tasks: Group routine messages, scheduling, and administrative work rather than scattering them throughout concentration-heavy periods.
- Catch self-interruptions: Notice when you switch because a task became boring, difficult, or uncertain rather than because something genuinely required your attention.
- Measure meaningful progress: At the end of the day, ask what important work moved forward instead of judging productivity by how many channels you managed simultaneously.
Give One Thing Enough Attention to Become Easier
Multitasking is not evidence that you are bad at focusing.
Often, it is simply what happens when modern work puts many useful tools, requests, conversations, and projects within immediate reach at the same time.
You do not have to eliminate that reality.
You can become more deliberate about moving through it.
Some moments genuinely call for switching quickly. Others deserve a longer stretch of uninterrupted thought. The skill is knowing the difference.
When something important requires reasoning, writing, learning, problem-solving, or careful decision-making, give it enough uninterrupted attention for your mind to settle into it. When you need to switch, leave a clear trail back. Let messages accumulate for a little while when they safely can, and stop interpreting constant responsiveness as the only form of productive work.
You may still have twenty tabs available.
They just do not all need to be mentally open at once.
Steven Willis