Today we're discussing the impact of urban green spaces on mental health. A recent study conducted in Melbourne followed 1,000 residents over five years. Participants who lived within 300 meters of a park or garden reported 20% lower stress levels. Interestingly, the size of the green space mattered less than its accessibility. Even small community gardens had a positive effect, especially for older adults. However, the study found no significant benefit for those who only viewed greenery from their windows without direct access. So, planners should prioritize walkable parks over large distant reserves.