Green spaces linked to 20% lower dementia risk

A long-term study conducted by Stockholm University and the Karolinska Institute suggests that living near green spaces can reduce the risk of developing dementia by 20%. The research, published in the journal ‘Alzheimer’s & Dementia’, tracked nearly 3,000 participants over a 16-year period.

Researchers found that the protective effect was strongest for individuals living within 100 meters of vegetation, with the correlation weakening as the distance increased. Lead researcher Cecilia Stenfors noted that the immediate environment around a home is a critical factor in supporting brain health and healthy aging.

The study identifies several mechanisms for this benefit. Direct factors include stress reduction, improved sleep, increased physical activity, and enhanced social cohesion. Indirectly, green spaces may protect residents from harmful environmental factors such as traffic noise, air pollution, and extreme temperatures.