The 4-minute testbehind the age answer.

Does attention span decline with age?

A little, later than most people think, and not in the way the headlines say. In a 2015 Psychological Science study of 10,430 people aged 10 to 70, the ability to keep attention on a 4-minute task rose until about 16, held steady until about 43, then declined gradually. Meanwhile people got steadily more careful: slower, but making fewer impulsive mistakes.

The curve doesn't fall off a cliff at 40. It flattens, and you trade some speed for care.

Age vs screens: what changed more?

For most adults, the setting changed more than the brain did. Researcher Gloria Mark told the University of California (January 2024) that people's attention on a single screen averaged about two and a half minutes in her 2004 study and 47 seconds in her studies from 2016 to 2020. That measures switching habits in people at work on computers, not a decline that comes with birthdays.

A 40-something brain with a phone in reach and a 40-something brain without one are having very different afternoons.

Attention span by age: three numbers people quote

Only one of these is a measure of attention across ages.

If someone quotes a single attention span in seconds, ask what task it was measured on.

The honest limits of all this

• The study was cross-sectional: different people at different ages, not the same people followed for decades. Its older volunteers chose to take a test online, which may tilt them toward sharper-than-average.
• Attention Age doesn't tell you your age, and it doesn't compare you with anyone. Its 0–100 Attention Index reflects your performance on its own tasks on your device. It is not a percentile and not a medical, clinical or diagnostic test.
• Scores usually rise with practice. That shows you got better at the tasks, not proof of broader change.

This is general information, not medical advice. Talk to your clinician, especially if memory or focus changes are sudden or are affecting daily life.

Who should pick something else

If you're worried about memory loss, confusion or changes someone else has noticed, skip apps and see a clinician; that's what a real assessment is for. If you just want a fun daily puzzle with no measurement at all, a crossword will do. Attention Age suits people who want a clear, repeatable baseline and an honest way to compare week to week.

How Attention Age works, in 3 steps

1. Take the five-minute test. Three timed tasks: Signal Watch (tap the signals, skip the decoys), Interference (judge the middle arrow) and Tracking (follow moving shapes).
2. Read five categories. Sustained Attention, Response Control, Consistency, Distractor Handling and Object Tracking, each explained in plain language, plus a validity check that flags sessions that probably weren't a real attempt.
3. Re-test weekly, fairly. Same tasks, same scoring. Changes under 5 points are called "about the same", and early gains from familiarity are flagged.

5 minutes, no account

Lower results stay too

The free daily 20 seconds

Play it: a 20-second steady-signal round

Like the study's task, in miniature. Shapes fade in one after another. Tap the stage (or press Space) for every square tower. Hold still for every triangle peak. Peaks are rare, which is the trap.

A 20-second toy round on a web page, not a measurement. It says nothing about your age; it only shows whether you lean fast or careful today.

A small story about a lower score

An example, not a testimonial: someone takes the test on a Sunday, then again the next Sunday after a short night. The second Attention Index is 4 points lower. The app calls it "about the same", keeps both results in history, and suggests one practice focus. Nobody gets told they've aged a year.

A fair re-test is one that's allowed to say "nothing changed".