Jennifer Medina reports from Loma Linda, and points to the large Seventh Day Adventist population (a religion that eschews meat) and residents' relationship to the local medical center as possible reasons for their longevity:
"So last week, when the City Council approved Loma Linda's first McDonald's restaurant, many residents bemoaned the decision, worrying that the officials were jeopardizing the city's reputation as a paragon of healthy lifestyles."
Smoking is completely banned in the city as well, and liquor sales are tightly controlled.