Today we're going to discuss the impact of urban green spaces on mental health. A recent study conducted in Melbourne followed 500 residents over five years. The researchers found that people living within 300 meters of a park reported 20% lower stress levels. Interestingly, the size of the green space mattered less than its accessibility. Even small pocket parks with benches and trees had a significant effect. However, the study also noted that noise pollution from nearby roads could reduce the benefits. So, urban planners should prioritize quiet, walkable green areas rather than large, isolated ones.