Gardening is good not only for the mind but also for the body, as it can reduce the risk of obesity.
A recent research found that avid gardeners weigh about a stone less than their neighbours.
As much as it provides a regular form of exercise, gardening could be a way to consume healthy food and encourage people to grow vegetables in their own garden.
Prof Cathleen Zick, who led the study, said: "This initial study validates the idea that community gardens are a valuable neighbourhood asset that can promote healthier living. That could be of interest to urban planners, public health officials and others focused on designing new neighbourhoods and revitalizing old ones."