People who live near green spaces are healthier. British researchers classified the entire pre-retirement population of England (n=40 813 236) into groups on the basis of income deprivation and exposure to green space. They concluded that populations that are exposed to the greenest environments have the lowest levels of health inequality related to low income. The investigators further analysed the connection between availability of green spaces and fatal illnesses of the 366,348 people who died between 2001 and 2005. The biggest difference in causes of death for people living near green space as opposed to those without green space availability was in circulatory diseases. (Effect of exposure to natural environment on health inequalities: an observational population study. Lancet. 2008 Nov 8;372(9650):1655-60).