Attention Span Over the Years: A Chart of What Changed

5 min read · Brainrot Test

Measured by how long people stay on one screen before switching, attention span over the years has dropped a lot: about two and a half minutes in 2004, around 75 seconds by 2012, and roughly 47 seconds in recent studies. Those numbers come from psychologist Gloria Mark's research on people working at computers. They describe screen switching, not a fixed limit on how long a human brain can focus.

Want to see where your own screen habits land today? Brainrot Test turns them into a score from 0 to 100 with your rank: Check my brainrot.

Short answer

Have attention spans decreased? On screens, yes: the time people spend on one screen before switching has fallen sharply over about 20 years. But that's a measure of behavior, not brain capacity. People still binge a whole season, play a game for hours, or lose an afternoon in a hobby. What changed is how often we switch when we're on a device.

The chart: 2004 to today

Here's the average attention span chart over time for screen focus, based on Gloria Mark's published work:

Read the chart like this: in 2004, a person working at a computer stayed on one window for a couple of minutes on average. Now it's under a minute. Half of the observations in recent studies were 40 seconds or less.

What the chart does not show

• It is not "the average attention span nowadays" for everything you do.
• It is not a Gen Z number or a teen number. The research mostly observed adults at work.
• It does not include the 8-second or 12-second figures you see elsewhere. Those don't have a traceable study behind them.

Where each number comes from

Good charts need good sources, so here's the paper trail.

2004: about two and a half minutes

Gloria Mark and her colleagues observed information workers, logging how long they stayed on a task or screen before switching. The average was around two and a half minutes.

2012: about 75 seconds

Later studies, using software that logged exactly when people switched windows, found the average had roughly halved.

Recent: about 47 seconds

More recent work, described in Mark's 2023 book Attention Span, put the average around 47 seconds with a median near 40.

The numbers we left out

You've probably seen "12 seconds in 2000, 8 seconds in 2015." That came from a 2015 Microsoft Canada marketing report that cited a website, and nobody has found the original study. We explain it in the goldfish attention span myth and the average attention span of Gen Z.

Why screen switching changed

So why are attention spans getting shorter on screens? A few changes stacked up over those 20 years:

1. Smartphones arrived. In 2004, your distraction lived on your desk. Now it lives in your pocket.
2. Notifications multiplied. Every app wants a ping. Each ping invites a switch.
3. Feeds became endless. Infinite scroll removed natural stopping points.
4. Short-form video took over. Clips of a few seconds each train quick switching. A large 2025 meta-analysis in Psychological Bulletin linked heavier short-form video use with weaker attention, though most of the studies show a connection rather than proof of cause.
5. Self-interruption became normal. Mark's research found that people often interrupt themselves, not just get interrupted. We've built a habit of switching even when nothing pings.

What did not change

It's easy to read the chart and panic. Some things worth remembering:

• Deep focus is still possible. People still read long books, practice instruments and finish marathon gaming sessions.
• Attention is flexible. It depends on interest, sleep, stress and setting. Habits shaped it, and habits can reshape it.
• This isn't a disease. Shorter screen switching is a behavior pattern, not a medical diagnosis. If focus is seriously affecting your life, a doctor is the right person to ask.

In other words, the human attention span over the years hasn't "broken." The environment changed, and our habits followed.

Here's the catch with a chart like this: it tells you about average people, not you. To know if your own attention has slipped, you'd need to measure yourself, then measure again later. Brainrot Test does both: a 17-question score now, a two-minute drill each day, and a re-check every Sunday that re-measures your number. Check my brainrot

What you can do about yours

The research gives you clues about how to improve attention span on screens:

• Reduce the triggers. Turn off notifications from anything that isn't a real person.
• Add distance. Put your phone in another room for focused tasks. The phone in another room study shows why it works better than face down.
• Batch your checking. Check messages at set times instead of whenever you feel like it.
• Practice long things. One chapter, one full episode, one long walk. Stamina builds with reps.
• Notice self-interruptions. When you catch yourself switching for no reason, name it: "That was a habit switch." Awareness slows it down.

Make your own chart

Try tracking your own attention span over time:

Fill it in each Sunday. If the last column goes up, you're winning.

Get your own number in the next minute

Attention span over the years is a population story. Your story starts with 17 questions about what you actually do with your phone. Brainrot Test gives you a score, a tier and your rank, then one two-minute drill a day, and every finished drill takes a point off your score.

Check my brainrot

FAQ

How has attention span changed over time?

On screens, it has dropped from about two and a half minutes on one screen in 2004 to about 47 seconds in recent research by Gloria Mark. That measures how often people switch, not the brain's maximum focus.

What is the average attention span nowadays?

For screen work, research puts it around 47 seconds before switching, with a median near 40. For other activities, like a movie or a game you love, it can be much longer. There isn't one number for everything.

Is there a real attention span over the years graph?

The most reliable one is built from Gloria Mark's studies: roughly 150 seconds in 2004, 75 seconds in 2012 and 47 seconds recently. Graphs showing 12 seconds dropping to 8 seconds rely on a stat nobody has been able to source.

Are attention spans getting shorter every year?

Screen switching has gotten faster over the last two decades, but there's no yearly measurement showing a steady annual drop. And individual habits can move your own focus up again.

What is the average attention span in 2026?

No new definitive figure exists for 2026. The best recent research still points to about 47 seconds on a screen before switching. The more useful number is your own, measured over time.