Short-form video impact: How scrolling affects attention span & well-being

It often starts harmlessly. You watch one short clip while waiting for your cab, another before dinner, and a few more before bed. Before you realise it, 40 minutes have disappeared in an endless cycle of swiping and scrolling.

Short-form videos now dominate platforms like Instagram Reels and YouTube Shorts. However, a large global review involving nearly 98,000 participants, published in Psychological Bulletin, indicates that heavy and compulsive use may influence both our concentration and emotional well-being.

The review analysed 71 studies conducted across different countries and age groups, from teenagers to adults, with the average participant in their early twenties.


The researchers do not conclude that short videos cause permanent damage. But they found consistent associations between excessive scrolling and reduced attention span, weaker impulse control, and increased levels of stress and anxiety. Simply put, the more compulsive the scrolling habit, the more difficult it may become to focus on slower activities such as reading, studying, or completing tasks without reaching for the phone.

Experts suggest that when every swipe delivers fresh, stimulating content, the brain starts to expect constant novelty. When stimulation slows down, boredom can set in more quickly.

Clinicians believe the structure of these platforms contributes to the effect. Rapid bursts of colour, novelty and instant reward repeatedly trigger the brain’s reward system, strengthening the desire to continue watching. While many users can consciously step away, individuals with addictive or obsessive tendencies may struggle more, says Dr Paramjeet Singh, consultant psychiatrist at PSRI Hospital, who observes that excessive scrolling is increasingly appearing in clinics as fatigue, diminished focus and even relationship strain.

From a psychological perspective, the worry is less about sudden damage and more about gradual changes in how the brain processes stimulation. Dr Jyoti Mishra, senior consultant - Psychology at Apollo Spectra Hospital, Delhi, explains, "short-form videos are engineered around novelty and instant gratification." She adds, "Compulsive watching can slowly erode attention span and impulse control." According to her, "Prolonged exposure to fast, emotionally charged content keeps neural networks in a heightened state of alert," which may lead to restlessness, poor concentration and anxiety, especially among young adults.

Encouragingly, she notes that adopting healthy digital habits can help. "practising digital hygiene - limiting screen time, taking breaks and protecting sleep - can reverse many of these effects."

The review also highlights that problematic or difficult-to-control use showed stronger links with these outcomes than overall screen time alone.

Importantly, the findings demonstrate correlation, not direct causation. Individuals already dealing with attention difficulties or anxiety may be more inclined toward fast-paced digital content.

Even so, when numerous studies reveal similar patterns, the trend cannot be ignored. Scrolling requires little effort. Sustained focus demands intention. Maintaining that balance may be more important than ever.

[With TOI inputs]