Today we're going to discuss 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 reported 20% lower stress levels. Interestingly, the benefit was stronger for those who visited the park at least once a week, regardless of the duration of the visit. The study also found that tree density mattered more than the total area of green space. However, the effect was less pronounced in younger adults under 30, possibly due to their different lifestyle patterns.