Abstract:
Researchers from the University of Cambridge collaborated with the Queen's Reading Room in the UK to publish a review review on leisure reading and brain health in Psychological Medicine, summarizing existing research on children, adults and the elderly. The article points out that reading is associated with better cognitive performance, mental health and well-being, and may also help maintain cognitive abilities in later life; however, this is not a new clinical trial, and most of the existing evidence can only illustrate correlations, but cannot yet prove that reading itself directly causes these long-term changes.
Studies with children provide some of the stronger clues. A study of 10,243 teenagers in the United States found that children who started reading for fun earlier generally had better attention, memory and executive function performance, better academic performance, and fewer psychological problems when they entered adolescence; they slept longer on average and used less screen time. The study looked at ages 2 to 9 as the age range for starting reading and found that about 12 hours of reading per week was associated with better performance, but this was still an observational result and does not mean that 12 hours is a proven optimal prescription.
Brain imaging studies have respectively found that reading experience is related to structural differences in brain areas related to language, learning, emotion regulation, and executive control, including larger volumes or cortical areas in some areas, stronger white matter connections related to language processing, and thicker cortex in some language areas. When reading novels, networks in the brain related to understanding other people's thoughts and social cognition are also engaged. However, imaging differences may reflect reading experience as well as individual pre-existing brain characteristics.
The research review also reviews some of the intervention evidence. For example, a training study involving only 11 children with dyslexia aged 7 to 11 years old found that after 8 weeks of image association, pronunciation and word tracing training, reading ability and gray matter volume in several brain areas changed. This type of specialized training for dyslexia is not equivalent to daily recreational reading, but it illustrates that reading-related training may be accompanied by plastic changes in the brain.
For adults, surveys link leisure reading with lower stress, greater relaxation, empathy and a sense of well-being; a 2024 neuroscientific study commissioned by the Queen's Reading Room reported that stress indicators can drop by nearly 20% after five minutes of reading a novel. These short-term results are not the same thing as long-term brain health problems. Reading with others and participating in book clubs may also reduce loneliness through social interaction; a review of 11 studies among older adults also found that shared reading activities are associated with better well-being and lower loneliness.
In terms of cognition in later life, a study tracking 5,437 adults over 55 years old with baseline cognitive health found that those who frequently read or engage in mental activities such as chess were less likely to develop cognitive impairment during a 5-year follow-up. Another 4.5-year study of 801 people over the age of 65 found that cognitive activities such as reading newspapers, magazines and books were associated with a 33% lower risk of Alzheimer's disease; another study reported that reading was associated with a 35% lower risk of dementia. These results do not prove that reading prevents dementia, and factors such as education, overall health and lifestyle may also influence risk.
Researchers believe that the threshold for reading is low and the forms are diverse. Novels, comics and graphic novels may become the entrance to cultivate reading habits; shared reading can also bring social benefits. However, more experimental research is still needed to clarify how reading affects brain structure and long-term cognition. In particular, whether adults starting to read later in life can have the same effect has not yet been determined.
Comments