The impact of gardening on cognitive function differs significantly depending on the stage of neurodegeneration. In individuals experiencing subclinical cognitive decline, gardening often serves as a powerful tool for cognitive stimulation and prevention. Activities involving planning, sensory engagement, and complex motor tasks can help maintain executive functions and potentially delay the onset of more severe symptoms.
In contrast, for individuals in the advanced stages of dementia, the cognitive benefits shift from complex mental stimulation to emotional and sensory regulation. While it is unlikely that gardening will reverse neurodegeneration or improve high level executive tasks in advanced stages, it provides significant non cognitive benefits. These include reducing agitation, decreasing anxiety, and providing tactile sensory stimulation through contact with soil and plants.
Research suggests that for advanced dementia, the therapeutic focus should be on sensory engagement and social interaction rather than cognitive tasks. Therefore, while those with subclinical decline may experience neuroprotective effects, those in advanced stages benefit primarily through improved mood, reduced distress, and enhanced quality of life via sensory immersion.
