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Regular Exercise Correlates With Enhanced Self-Control and Prefrontal Function in Excessive Short-Video Users.

Yawei Li1,2, Tian Feng3,4

  • 1Department of Sport, Henan Sport University, Zhengzhou, China.

Brain and Behavior
|June 15, 2026
PubMed
Summary
This summary is machine-generated.

Excessive short-video use impairs self-control and prefrontal cortex function. Regular exercise mitigates these negative effects, enhancing cognitive control and brain efficiency in college students.

Keywords:
exercisefunctional near‐infrared spectroscopyinhibitory controlprefrontal cortexself‐controlshort‐video overuse

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Behavioral Science

Background:

  • Problematic short-video use is prevalent among college students.
  • Understanding the neurocognitive impact of digital media consumption and the protective role of physical activity is crucial.

Purpose of the Study:

  • To investigate the relationship between short-video viewing duration and self-control behavior.
  • To examine the effects of physical activity on self-control and prefrontal cortical activation.
  • To explore the interplay between digital media use and exercise on cognitive functions.

Main Methods:

  • 124 male college students with problematic short-video use were categorized into low, moderate, and high usage groups.
  • Participants were also divided into high and low exercise groups.
  • Inhibitory control was assessed via a Go/Nogo task, and prefrontal activation was measured using functional near-infrared spectroscopy (fNIRS).

Main Results:

  • High video users exhibited longer reaction times and greater prefrontal cortex activation compared to low and moderate users.
  • Regular exercisers showed shorter reaction times and better self-control and decisiveness.
  • Exercise appeared to enhance cognitive performance, especially in students with moderate to high video usage.

Conclusions:

  • Excessive short-video consumption is linked to diminished self-control and reduced prefrontal cortex efficiency.
  • Regular physical activity is associated with improved self-control and cognitive function.
  • Exercise may buffer the adverse neurocognitive effects of excessive digital media engagement.