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Reading Book versus Watching Television: Study Highlights Implications on Long-Term Health - Video
Overview
One's choice of reading a book or watching television could have implications for their long-term brain health, say researchers at the University of South Australia.
Assessing the 24-hour activity patterns of 397 older adults, researchers found that the context or type of activity that you engage in, matters when it comes to brain health. And specifically, that some sedentary (or sitting) behaviours are better for cognitive function than others.
When looking at different sedentary behaviours, they found that social or mentally stimulating activities such as reading, listening to music, praying, crafting, playing a musical instrument, or chatting with others are beneficial for memory and thinking abilities. Yet watching TV or playing video games are detrimental.
Researchers believe that there is likely a hierarchy of how sedentary behaviours relate to cognitive function, in that some have positive effects while others have negative effects. It’s a valuable insight that could help reduce risks of cognitive impairment, particularly when at least 45% of dementia cases could be prevented through modifiable lifestyle factors.
UniSA researcher Dr Maddison Mellow says that not all sedentary behaviours are equal when it comes to memory and thinking ability. “In this research, we found that the context of an activity alters how it relates to cognitive function, with different activities providing varying levels of cognitive stimulation and social engagement,” Dr Mellow says.
“We already know that physical activity is a strong protector against dementia risk, and this should certainly be prioritised if you are trying to improve your brain health. But until now, we hadn’t directly explored whether we can benefit our brain health by swapping one sedentary behaviour for another.
“We found that sedentary behaviours which promote mental stimulation or social engagement – such as reading or talking with friends – are beneficial for cognitive function, whereas others like watching TV or gaming have a negative effect. So, the type of activity is important.
“And, while the ‘move more, sit less’ message certainly holds true for cardiometabolic and brain health, our research shows that a more nuanced approach is needed when it comes to thinking about the link between sedentary behaviours and cognitive function.”
“To achieve the best brain health and physical health benefits, you should prioritise movement that’s enjoyable and gets the heart rate up, as this has benefits for all aspects of health,” Dr Mellow says.
Reference: Maddison L Mellow, Dorothea Dumuid, Alexandra Wade, Timothy Olds, Ty Stanford, Hannah Keage, Montana Hunter, Nicholas Ware, Felicity M Simpson, Frini Karayanidis, Ashleigh E Smith, Should We Work Smarter or Harder for Our Health? A Comparison of Intensity and Domain-Based Time-Use Compositions and Their Associations With Cognitive and Cardiometabolic Health, The Journals of Gerontology: Series A, Volume 79, Issue 11, November 2024, glae233, https://doi.org/10.1093/gerona/glae233
Speakers
Dr. Bhumika Maikhuri
BDS, MDS