Middle Age Exercise & Alzheimer’s Prevention
- Boosting physical activity during middle age, specifically between 45 and 65, could be a key factor in Alzheimer's prevention, according to research published in Alzheimer's & Dementia.
- the collaborative effort involved scientists from the Barcelona Institute for Global Health (ISGlobal) and the Barcelonaβeta Brain Research Center (BBRC).
- World health Organization (WHO) guidelines recommend adults engage in 150 to 300 minutes of moderate or 75 to 150 minutes of vigorous activity weekly.
Unlock a powerful Alzheimer’s prevention strategy: Increased physical activity between ages 45 and 65 is linked to a notable reduction in risk. A new study, featured on News Directory 3, reveals the compelling connection between exercise and brain health. Discover how meeting World Health Organization guidelines, with just 150 to 300 minutes of moderate exercise weekly, can lessen beta-amyloid buildup and boost cortical thickness. Even minimal activity offers substantial benefits. This critical research emphasizes the preventative power of movement. What specific exercises yield the greatest impact? Discover what’s next …
Physical Activity in Middle Age Linked to Alzheimer’s Prevention
Updated June 01, 2025
Boosting physical activity during middle age, specifically between 45 and 65, could be a key factor in Alzheimer’s prevention, according to research published in Alzheimer’s & Dementia. The study underscores the potential harm of inactivity on brain health and advocates for increased physical activity among middle-aged adults.
the collaborative effort involved scientists from the Barcelona Institute for Global Health (ISGlobal) and the Barcelonaβeta Brain Research Center (BBRC). Their findings suggest that a notable portion of Alzheimer’s cases globally may be linked to insufficient physical activity.
World health Organization (WHO) guidelines recommend adults engage in 150 to 300 minutes of moderate or 75 to 150 minutes of vigorous activity weekly. Prior research indicates exercise benefits cardiovascular and mental health,reducing Alzheimer’s risk. Emerging evidence suggests physical activity may directly influence the development of brain pathology associated with the disease.
Eider Arenaza-Urquijo, an ISGlobal researcher, led the study, which tracked 337 participants from the ALFA+ longitudinal cohort at the BBRC over four years. Müge Akıncı, than a doctoral researcher at ISGlobal and the BBRC, served as the paper’s first author. The study monitored middle-aged Catalonia residents with a family history of Alzheimer’s disease.
Akıncı said that physical activity questionnaires tracked activity changes, while neuroimaging assessed exercise’s impact on brain structure and function. Participants were categorized as adherent (meeting WHO guidelines), non-adherent (below recommendations), or sedentary (no weekly activity).
Benefits of physical activity on brain mechanisms
Beta-amyloid (Aβ) accumulation in the brain can disrupt neural interaction and is considered an early indicator of Alzheimer’s disease. The study found that participants who increased their physical activity to meet WHO recommendations exhibited less beta-amyloid accumulation compared to sedentary individuals or those who reduced their activity.The effect was dose-dependent, with greater activity increases correlating with reduced amyloid burden.
Non-sedentary participants also displayed greater cortical thickness in brain regions vital for memory and associated with Alzheimer’s disease. Thinning in the medial temporal area, crucial for memory, is an early sign of neurodegeneration.
Akıncı noted that even those who exercised less then recommended showed greater cortical thickness than sedentary people, suggesting that any amount of exercise, no matter how minimal, has health benefits.
Researchers examined both increased physical activity and adherence to WHO recommendations, revealing that the benefits of physical activity appear linked to increasing activity over time rather than reaching a specific threshold.
Arenaza-Urquijo emphasized the importance of promoting physical activity in middle age as a public health strategy for Alzheimer’s prevention. She added that interventions aimed at increasing physical activity could be key to reducing the incidence of the disease in the future.
What’s next
Future research will focus on tailored interventions to promote physical activity among at-risk individuals, potentially mitigating the future impact of Alzheimer’s disease.