A startling study has uncovered the effects of doom scrolling on short-form content and its influence on the brain.
Many of us find ourselves caught in the cycle of endlessly scrolling through videos on platforms such as Instagram Reels, TikTok, and YouTube Shorts. While it might appear to be a harmless activity to watch endless clips of people falling or amusing cat antics, those who frequently consume content in this manner may experience effects on their brain function.
While a significant amount of previous research has focused specifically on TikTok, short-form videos (SFVs) have now become ubiquitous across various platforms.
To explore this further, researchers conducted a study analyzing data from 98,299 participants drawn from 71 studies across different social media channels.
The authors of the study stated: “The resurgence of short-form videos (SFVs), popularized by TikTok and Douyin, has transformed social media platforms, with features like Instagram Reels and YouTube Shorts fostering their widespread adoption.”

The researchers continued: “Although initially geared toward entertainment, SFVs are increasingly used in education, political campaigns, advertising, and consumerism, yet their design, characterized by endless scrolling interfaces, has raised concerns about addiction and negative health implications.”
Analyzing nearly 100,000 participants, the study examined their engagement patterns along with cognitive and mental health metrics in both young and adult demographics, revealing some concerning findings.
The study found that high consumption of SFVs is associated with diminished attention span in both younger and older individuals.
Additionally, SFV usage has been connected to adverse mental health outcomes, including depression, anxiety, stress, and feelings of loneliness. “The continuous cycle of swiping and receiving new, emotionally stimulating content has been proposed to trigger dopamine release, creating a reinforcement loop that contributes to patterns of habitual use and greater emotional reliance on digital interactions,” the study elaborates.

“This habitual engagement may be associated with heightened stress and anxiety, as some users report difficulties disengaging and regulating their emotions in offline settings,” the study notes.
Regarding other health aspects such as body image, the study emphasizes the need for further research.
SFV scrolling can also disrupt sleep quality, particularly when individuals engage with platforms like TikTok or Instagram before bedtime.
The study highlights: “In particular, the consumption of SFVs in the hours before bedtime has been linked to disrupted sleep quality due to the blue light emitting from electronic devices, which may inhibit the production of melatonin and serotonin—key hormones involved in regulating circadian rhythms.”
The overarching conclusion is clear: increased SFV consumption correlates with declines in both cognitive function and mental health.