Short videos can impair memory and learning ability in older adults

A new scientific study suggests that short-form videos, which have become enormously popular on social media, may have a negative impact on learning and memory retention — a finding of particular relevance to older adults who spend time on these platforms.

The research, conducted with a group of over 150 participants, compared the effects of videos of approximately 10 minutes in length with those of short clips (30 seconds to 2.5 minutes). The results are concerning: participants who watched the short videos scored significantly lower on memory tests and forgot information much more quickly.

Impact on the ageing brain

Brain imaging analysis revealed that short videos stimulate the regions of the brain responsible for attention, memory, and cognitive control to a lesser degree. Instead, they over-activate the mechanisms that respond rapidly to external stimuli, which may be problematic for older adults trying to learn new things or maintain their cognitive abilities.

For older people who are increasingly turning to platforms such as TikTok, Instagram Reels, or YouTube Shorts for information or entertainment, this finding is significant. Fragmented attention may worsen existing cognitive difficulties or make it harder to maintain optimal brain function.

Implications for elderly care

Specialists believe that the results of this study should prompt a rethinking of how information is presented to older adults. Educational materials on health, cognitive stimulation exercises, and technology training should favour longer, more detailed formats.

For carers and professionals working with older adults, this research suggests that cognitive training programmes based on short videos may be less effective than previously thought. The traditional approach — using more comprehensive materials and allowing sufficient time for processing — remains preferable for this age group.