Cambridge study links reading to better brain health across ages

A new review of research from the University of Cambridge finds that reading for pleasure is linked to better mental health, stronger cognitive performance, and a lower risk of cognitive decline across all stages of life. The findings, published in Psychological Medicine, synthesize data from over 10,000 children, thousands of older adults, and smaller brain imaging studies to show how regular reading may support brain health from childhood through old age.

Reading’s cognitive benefits start early

A 2024 study of over 10,200 adolescents revealed that those who began reading for pleasure between ages three and ten showed measurable advantages. Compared to peers who read little in early childhood, they exhibited better attention, memory, and executive function. Brain scans also highlighted differences in regions responsible for language, cognition, and emotional regulation.

Later-life protection against cognitive decline

Research involving older adults reinforces the idea that reading remains valuable at every age. A five-year study of nearly 5,500 cognitively healthy adults aged 55 and older found that those who frequently engaged in stimulating activities—including reading—were less likely to develop cognitive impairment. Another study of over 800 adults aged 65 and older linked cognitively stimulating activities, including reading newspapers, magazines, and books, to a 33% lower risk of Alzheimer’s disease. Another study of nearly 500 people aged 75 and older noted that reading was associated with a 35% lower risk of dementia over an average of 5.1 years.

While these studies show correlations, not direct causation, the consistency of the findings suggests that reading may play a role in maintaining cognitive function as people age. The format, whether print, digital, or audio, appears less important than the habit itself.

Social and practical advantages

The review also highlights social benefits, particularly for older adults. Shared reading in book clubs was linked to reduced loneliness and stronger social connections. Reading is an accessible, relatively inexpensive activity that can be done alone or in groups, in short bursts or extended sessions, making it one of the most accessible ways to support mental health.

Study methods and limitations in assessing reading’s effects

The review relied on observational data from surveys, longitudinal studies, and brain imaging research rather than direct experiments. Since long-term experimental studies on reading habits were impractical, the team synthesized existing data to identify patterns across different age groups.

A simple habit with broad reach

The review’s lead author, Barbara J. Sahakian, emphasized that reading for enjoyment, whether fiction, newspapers, comics, or graphic novels, may be a straightforward way to engage the mind. The key, according to the study, is finding materials that genuinely interest the reader, regardless of format. The message is clear: reading is a low-cost, widely available activity with potential benefits across the lifespan.