Frequent short-video viewing is linked to lower IQ scores, CerebrumIQ data shows.

A new internal analysis from CerebrumIQ, based on responses from over 18,000 platform users, has found a measurable correlation between frequent short-video consumption and lower average IQ scores. While the study does not establish causation, the consistency of the observed patterns raises pressing questions about the cognitive cost of endless-scrolling media environments.

The analysis matched user IQ scores, recorded through CerebrumIQ’s in-platform IQ tests, with responses to a survey on digital content habits, particularly TikTok, Instagram Reels, YouTube Shorts, and similar formats. Users who reported watching short-form video content for more than 90 minutes daily showed an average IQ 5.8 points lower than those who engaged for less than 10 minutes per day.

Among those reporting daily short-video use exceeding 2 hours, nearly 72% scored below the platform’s overall median IQ benchmark. In contrast, light users (under 15 minutes/day) were overrepresented in the top quintile of IQ performers. The sample included respondents aged 18 to 36, with the highest video consumption levels concentrated in the 18-24 demographic.

While the overall IQ average for the sample was 100.3, heavy video users clustered around 94.5, while light users averaged 102.6. These gaps persisted across regions and did not significantly shift when filtered by self-reported education levels, suggesting the pattern holds across diverse subgroups.

Notably, the largest IQ gaps were observed within the youngest cohort. Among users aged 18 to 22, the average score for high video consumers was 8.2 points lower than for peers in the same age range who consumed short videos minimally. The age-linked divergence narrowed in older users, indicating a potentially compounding cognitive effect among those whose formative cognitive years coincided with the rise of algorithmic video feeds.

The data also points to differences in performance by cognitive domain. The most affected areas among high-consumption users were tasks requiring working memory, pattern recognition under time constraints, and sustained attention. Reaction speed and basic logic tasks showed less variation between usage groups, indicating that not all cognitive functions are equally impacted.

CerebrumIQ frames the findings as an early behavioral signal rather than a diagnosis. The platform emphasizes that while the cognitive associations with short-form video consumption appear robust, individual outcomes vary widely. Notably, users who reduced their screen time over 30 days and engaged with structured cognitive training on the platform saw partial recovery in performance scores, especially on tasks involving focus and memory.

Rather than drawing firm conclusions, the analysis underscores the importance of paying closer attention to digital habits, particularly among younger users. As media platforms increasingly prioritize rapid, high-volume content, CerebrumIQ's data suggests that sustained cognitive capacity may be quietly shifting in response.

About CerebrumIQ:
CerebrumIQ is a cognitive performance platform designed to strengthen mental skills through a blend of IQ testing, neural training games, intelligence puzzles, educational courses, and expert content. The assessments are calibrated to reflect standard IQ tests and used globally to track and enhance users’ thinking abilities. The platform, used by over a million people worldwide, offers more than 300 lessons on emotional intelligence, problem-solving, innovation, confidence-building, and decision-making, helping users develop essential life skills in a structured, engaging way. CerebrumIQ is redefining how people engage with their mental potential. Unlike entertainment-style brain games, Cerebrum IQ is a structured training ecosystem built to deliver lasting neural growth.

Media Contact:
CerebrumIQ
pr@cerebrumiq.com
Amelia Botha
PR Manager