Active sitting vs. passive sitting: How your choice impacts brain health and longevity Passive activities (TV, mindless scrolling) accelerate cognitive decline. Mentally engaging tasks (reading, puzzles, strategic games) may protect brain health and reduce dementia risk. A global study found sedentary behavior must be categorized—mentally stimulating activities while sitting can preserve memory and cognitive flexibility. Physical activity alone doesn’t fully counteract the harms of prolonged sitting. Prolonged inactivity raises risks for dementia, stroke, depression, and metabolic disorders. Every extra hour spent sitting increases disease risk by 5-54%, depending on the condition. Swap passive screen time for brain-stimulating activities (books, puzzles).…

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