The science of focus

What Scrolling Does to Your Brain

Watch what happens to focus as screen time increases.

Screen time, each day3.5hrs

1 hravg ~3–5 hr9 hr

FOCUS SIGNAL 64% · HAZY

An illustration, not a brain scan. The findings below are real research, the image is a way to feel them.

Protect Your Attention

Attention is your most valuable resource. Train it. Don't trade it away.

Attention fragmentation47 sec

In 2004, people held focus on a single screen for about two and a half minutes. Today the average is roughly 47 seconds before switching away.

GLORIA MARK · UC IRVINE · 2023

The refocus tax23 min

After a single interruption, it takes around 23 minutes to fully return to the original task, usually after two detours.

MARK ET AL. · UC IRVINE

A structural linkACC

Heavy media-multitaskers showed lower grey-matter density in the anterior cingulate cortex, tied to focus and emotional control. A link, not a proven cause.

LOH & KANAI · PLOS ONE · 2014 · n=75 · CORRELATIONAL

The reward loop∞

Feeds run on variable rewards, the same unpredictable-payoff schedule that makes slot machines hard to put down. The pull is the design.

BEHAVIOURAL DESIGN · VARIABLE-RATIO REINFORCEMENT

The hopeful part3 wks

In a randomised trial, cutting social media to ~30 minutes a day produced significant drops in loneliness and depression within three weeks. The signal comes back.

HUNT ET AL. · UNIV. OF PENNSYLVANIA · 2018 · RCT

Your focus isn't gone. It just needs protecting.

Take Back Your Focus