US Edition'Passive' screen time may raise dementia risk: Study
Researchers followed more than 20,000 adults and found mentally passive sitting was linked to higher dementia risk, while active puzzles were associated with lower risk.
- A new study published in the American Journal of Preventive Medicine tracked over 20,000 adults in Sweden for nearly 20 years, finding that "mentally passive" sedentary behaviors like watching television are linked to a higher risk of dementia.
- Mentally passive activities involve little cognitive effort, whereas mentally active sedentary behaviors—such as reading or solving puzzles—require engagement that may support cognitive reserve, according to CNN wellness expert Dr. Leana Wen.
- Replacing one hour of passive sedentary time with an active behavior correlates to a 7% reduction in dementia risk; adding an hour of mentally active behavior yields a 4% reduction, with an 11% lower risk when combined with physical activity.
- Social interaction and activities like group hobbies or shared learning provide additional brain protection, helping people support memory and long-term brain health through cognitively engaging pastimes.
- Although findings suggest an association, the study cannot prove cause and effect, as individuals with better baseline cognition may naturally choose active pastimes; brain health remains tied to nutritious diet, sleep, and cardiovascular fitness.
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KRDOBy Katia Hetter, CNN. It's not just how much time you spend sitting, but what you're doing while you're sitting that can affect your health. Watching television and other sedentary, "mentally passive" behaviors are linked to a higher risk of developing dementia, while more mentally stimulating activities, such as crossword puzzles, appear to offer some protection, according to a new study. The findings add nuance to what we know about brain heal…
A study carried out by researchers at the Karolinska Institute in Sweden examined the relationship between different types of sedentary behavior and the development of dementia, based on the follow-up of more than 20,000 adults for almost two decades, with the aim of identifying modifiable factors associated with this condition.At the global level, population ageing has increased the relevance of age-related diseases. Dementia is ranked as the t…
The research published in the American Journal of Preventive Medicine (American Journal of Preventive Medicine) and carried out by CNN followed more than 20,000 adults aged 35 to 64 in Sweden for a period of almost two decades. At this time, 569 participants were diagnosed with dementia. The results indicate a clear difference between “passive” sedentary activities and “active” from a cognitive point of view. Thus, the time spent in front of tel…
A new research by the Karolinska Institute (Sweden), which distinguishes passive and mentally active sedentarism in relation to dementia, has revealed that adults who engage in prolonged periods of mentally passive sedentaryism have a higher risk of developing dementia.It has been shown that replacing passive sedentaryism with mentally active sedentaryism reduces the risk of developing dementia in adulthood.The study, published in the American J…
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