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 gardens can reduce stress levels significantly. However, the benefits are not equal for everyone. For instance, a 2021 study in London found that people living within a 10-minute walk of a park reported lower anxiety, but only if the park had benches and shaded areas. Without these features, the effect was minimal. Additionally, the study highlighted that community gardens, where residents can actively participate, had a stronger positive impact than passive green spaces. So, it's not just about having greenery, but about how it's designed and used.