However, other sedentary behaviors did not have the same association, suggesting what one does while sitting may matter more than previously thought
TUESDAY, July 28, 2026 (HealthDay News) — Not all sitting is the same in terms of its impact on brain health, according to a study published online July 10 in Alzheimer’s & Dementia.
Natan Feter, Ph.D., from the University of Southern California in Los Angeles, and colleagues used data from the Atherosclerosis Risk in Communities study (1,712 individuals) to examine the impact of sedentary behavior (TV viewing and occupational sitting) on brain health.
The researchers found that frequent TV watching in middle age was associated with increased white matter hyperintensity (WMH) volume and reduced frontal, occipital, and Alzheimer disease-signature region volumes. There was a link between sitting during work, which is more cognitively active, and lower WMH and larger frontal (males only), occipital, and parietal volumes. When adjusting for physical activity, results remained consistent.
“For years we”ve focused on how much people sit,” senior author David Raichlen, Ph.D., also from University of Southern California, said in a statement. “Our findings suggest we should also pay attention to what they”re doing while they”re sitting.”
Low Levels of Placental Growth Factor in Pregnancy Linked to Subsequent ADHD in Offspring .jpg)
Time-Restricted Eating Shows Possible Benefits for Patients With Huntington Disease 
Past Blast Exposure Tied to Long-Term Chronic Medical Diagnoses in Veterans 
Nearly 3 in 4 Older Adults Express Interest in Vaccine to Prevent Dementia 
Lower Cognitive Functioning During 60s Linked to Subsequent Stroke Risk 
Polypharmacy of Prescription Medications Increased for U.S. Older Adults 
Nearly 1 in 10 Older Adults Used Cannabis in the Past Year 
Insomnia Linked to Increased Risk for Stroke, Odds of Admission 
.jpg)
