Marcus Hiles says that renters should pick communities with footpaths, explaining that tenants who take advantage of even mild exercising on these paths tend to enjoy healthier lives. A 2008 study by the American Journal of Preventive Medicine gives further proof, showing that people who live near park areas typically have a lower risk of obesity. A 2010 study by the journal Social Science and Medicine found that people who live near large amounts of green space were more relaxed when compared to others who did not spend much time outdoors. Hiles, a strong believer in community living, says that in addition to their ability to help lower energy costs and foster active lifestyles, trails also encourage a sense of closeness among neighbors, with pathways cause spontaneous meetings and interactions. Environmental, practical and fun, these shared public series of walking trails are an amenity no housing development should overlook.