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 significantly reduce stress levels. However, the benefits are not uniform across all age groups. For instance, teenagers benefit most from active recreational areas, while older adults prefer quiet, shaded spots for relaxation. Interestingly, the research also found that the proximity of green spaces matters more than their size. A small park within a five-minute walk has a greater effect on well-being than a large distant one. This has important implications for urban planning.