In today's lecture, we'll discuss the impact of urban green spaces on mental health. Recent studies have shown that access to parks and community gardens can reduce stress levels significantly. For example, a 2022 survey in London found that residents living within 500 meters of a green space reported 20% lower anxiety scores. However, the quality of the space matters more than its size. Small, well-maintained gardens with seating and trees are more effective than large, barren lawns. Also, activities like community gardening enhance social bonds, which further boosts well-being. So, city planners should prioritize creating accessible, quality green areas.