A recent study from the University of South Australia has found that certain sedentary activities may increase the risk of dementia, while others could be protective. The research tracked the daily routines of 397 older adults to assess how different behaviours affect cognitive function.
Activities such as reading, crafting, chatting with friends, listening to music, and prayer were associated with better brain health. However, watching television and playing video games were linked to a higher risk of cognitive decline, the study concluded.
Dr Maddison Mellow, a researcher involved in the project, said: '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.' She emphasised that the type of sedentary activity matters.
Dementia affects nearly one million people in the UK, including one in 11 over the age of 65. The NHS notes that around 40% of dementia cases may be preventable through lifestyle changes.
Dr Mellow recommended breaking up long periods of TV watching with physical activity or cognitively engaging seated tasks like reading. The findings add to evidence that lifestyle factors, including diet, exercise, and smoking, play a significant role in dementia risk.
