The good news is that even slight alterations, such as planting more trees in the inner city or creating urban parks with a greater variety of plants, can significantly reduce the negative side effects of city life.

【参考答案】

好消息是，即使是微小的改变，如在城市中多植树或建立种有多种植被的城市公园，都会大幅度地减少城市生活对人脑的负面影响。