With scrolling, the long-term rewiring of motivation and focus is a real concern
Is slipping in short videos during the workday dulling your mind and fostering addiction like alcohol or drugs?
Worse, the brain may adapt to constant novelty and instant rewards, prompting more impulsive choices.
“Short-form video addiction is a global public health threat with users in China spending 151 minutes daily on average, and 95.5 per cent of internet users engaged. This high-intensity ‘instant reward’ consumption not only impairs attention, sleep and mental health but also increases depression risk.”
— Qiand Wang, professor of psychology, Tianjin Normal University
Other studies also link short-form clips to declines in attention span, cognitive abilities and short-term memory.
“Since these are rapid-fire in nature, the brain seems overwhelmed in processing them. Short videos deliver high dopamine experiences with minimal effort, which can overstimulate the brain’s reward pathways, the circuits which are also involved in addictive substances. Over a period of time, this can reduce sensory, natural rewards and increase impulsive behaviour.”
— Dr Praveen Gupta, chairman, Marengo Asia International Institute of Neuro & Spine (MAIINS), Marengo Asia Hospitals, Gurugram
How are short videos addictive?
Frequent use of short videos links to shrinking attention capacity.
Reels serve a nonstop stream of novelty, pushing users from one moment to the next rather than encouraging deep focus.
Content variety forces constant context-switching and strains the brain’s prefrontal cortex.
The prefrontal cortex steers thoughts, behaviour and emotions based on incoming information.
Continuous switching harms its ability to hold and manipulate information.
MRI studies found higher screen time in adolescents correlates with a thinner cortex.
Because the prefrontal cortex keeps maturing into the mid-20s, short-form videos can disturb judgement and information regulation in young people.
How do short videos impact sleep?
Exposure to screens at night, especially emotionally charged clips, disturbs the circadian rhythm.
That disruption affects the hippocampus, the brain area essential for learning and memory.
The hippocampus helps form new memories and transfers short-term memories into long-term storage.
It also aids spatial navigation and remembering routes.
Can scrolling be compared to alcohol addiction?
There is no direct scientific metric that equates damage from short videos to harm caused by alcohol or tobacco.
Both alcohol and nicotine show direct neurotoxic effects, and short videos appear to induce similar functional changes.
Repeatedly checking short clips floods the brain’s reward system with dopamine, training it to crave novelty.
Over time, this erodes sustained attention and reshapes neural pathways in ways resembling substance addiction, particularly in still-developing brains.
While this is not identical to chemical brain injury from alcohol or nicotine, the long-term rewiring of motivation and focus is a real concern.