Recent research challenges the belief that prolonged sitting alone can increase dementia risk. Instead, the type of sitting may play a crucial role. New findings published in the American Journal of Preventive Medicine reveal that mentally engaging sedentary activities can significantly reduce the risk of developing dementia.
Mentally active sedentary behaviors include activities like reading, office work, or anything that actively engages the brain while sitting. In contrast, mentally passive behaviors include watching TV or engaging in screen activities with low brain engagement.
“While all sitting involves minimal energy expenditure, it may be differentiated by the level of brain activity,” said Dr. Mats Hallgren from Sweden’s Karolinska Institute.
To reach these conclusions, Swedish researchers analyzed data from over 20,000 adults aged 35 to 64, monitoring them from 1997 to 2016. Participants provided information about their sitting habits, physical activity, and lifestyle behaviors. Swedish health and death records identified dementia diagnoses during the study period.
The research emphasizes that how people use their brains while sitting may be more important than previously realized. Mentally active sedentary behavior was linked to a notable decrease in dementia risk compared to more passive sitting activities.
Although the study was conducted in Sweden, the researchers assert the findings likely apply globally and can inform public health guidelines and preventive strategies. The distinction between passive and mentally engaging habits is seen as pivotal for maintaining brain health.
The Centers for Disease Control and Prevention (CDC) predicts nearly 14 million American adults will have Alzheimer’s disease by 2060. This research underscores the importance of both physical and mental activity, particularly as we age.
Additionally, a recent study by the Alzheimer’s Association found that biological age may be linked to dementia risk. Some evidence also suggests that a higher intake of unprocessed meat might protect against dementia in individuals carrying a variant of a specific gene.
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