Depression in the city due to unfavorable ecology. There is no grass under your feet, we breathe dust and harmful gases, there is little oxygen, the noise from the machines and lawn mowers, there is no biodiversity of plants, and so on - this is an environmental aspect. Because of the constant mowing of grass and straight lines of ordinary buildings, we see lifeless empty spaces with straight lines that put pressure on the psyche. A person is more comfortable and healthy for a situation when he is surrounded by various plants and natural lawns with unmowed grass.