What Is Doomscrolling and Why You Can’t Stop

The technical definition

Doomscrolling is the act of spending excessive amounts of time scrolling through bad or discouraging news. But in the context of TikTok, Reels, and Shorts, the term evolves: you’re not looking for “bad news,” you’re chasing dopamine.

The mechanism: intermittent reinforcement

Slot machines in casinos use a principle called intermittent reinforcement: you don’t know what’s going to happen, but each pull could be the winner. Your brain releases dopaminebefore the outcome, driven by anticipation.

Reels and TikTok work the same way:

• Each swipe is a “pull” of the machine
• You don’t know what comes next (uncertainty)
• It could be something good (reward)
• Anticipation releases dopamine
• The pattern repeats infinitely

“You’re not scrolling videos. You’re scrolling the anticipation of what comes next.”

The scientific evidence

fMRI studies show that short-form content activates the nucleus accumbens(the brain’s reward center) in a way similar to addictive substances. The difference: the activation is faster and more frequent than with other types of digital content.

Why “you can’t stop”

It’s not a lack of willpower. Your brain is doing exactly what it evolved to do: seek novelty and reward. The problem is that:

1. The design of the platforms exploits this circuit
2. The algorithm learns what hooks you and gives you more
3. The pattern is reinforced with every swipe

Signs you’re doomscrolling

• You say “just one more” and 30 minutes go by
• You feel physically tired afterward
• You’ve forgotten what you watched 2 minutes ago
• You feel empty or irritable when you stop

Starting to break the pattern

The first step is recognizing it’s not your fault. Your brain is responding normally to an abnormal environment. Then:

• Turn on in-app time limits
• Use grayscale mode
• Remove the app shortcut from your home screen
• Have alternative activities ready to go