Today we're discussing the impact of urban green spaces on mental health. A recent study followed 1,000 adults over five years. Participants who lived within 300 meters of a park or garden reported 20% lower stress levels and improved mood. Interestingly, the effect was stronger for older adults and those who visited the space at least twice a week. However, the study noted that simply having a balcony with plants did not produce the same benefits. The researchers suggest that access to larger, natural areas encourages physical activity and social interaction, which are key factors.
❓ 根据讲座内容，该研究发现了城市绿地的哪些影响？
A. A. 居住在公园附近可使各年龄段的压力水平均降低20%。
B. B. 每周两次探访绿色空间对情绪没有显著影响。
C. C. 拥有一个带植物的阳台，其益处不亚于游览大型公园。
D. D. 对于定期参观的老年人来说，这种积极效果更为显著。
✅ 正确答案
D. The positive effect was stronger for older adults who visited regularly.