Loma Linda, California was designated as a “blue zone,” a place where people tend to live longer. This designation is connected to the religious history of some of the residents:

In 2008, Loma Linda rocketed to the national stage when it was dubbed a “Blue Zone,” the term coined by author Dan Buettner to describe a place where people not only live longer but also live healthier lives. Nearly 20 years later, the California town of around 25,000 people still stands out rather oddly in its peer group, which includes beautiful international destinations like Okinawa, Japan; Sardinia, Italy; Nicoya Peninsula, Costa Rica; and Ikaria, Greece. All of them are set against mountains or sea, with residents who live a more traditional lifestyle…

The Blue Zone designation actually makes him a bit nervous, he said, and he doesn’t tout it often, since the data that the designation was based on is now rather old and was based solely on the Seventh-day Adventist part of the community. He said it’s been brought up among city officials as a way to promote the city, but members are often divided. 

Even Dr. Gary Fraser, whose research was the base for much of the Blue Zone status designation, told SFGATE that “the Loma Linda experience is totally irrelevant.” The research done was important, and the designation is significant, he said, but the overall study of longer living is more complicated and technical than it’s often presented, and it has more to do with Adventists than Loma Linda.

He said that when he began his research more than 40 years ago, it was helpful to be able to study Adventists because it helped level the playing field. Since most don’t smoke or drink and participate in similar, healthier lifestyle activities, researchers could analyze their diets more effectively and understand how that affected longevity. Fraser said, if anything, it points to the importance of studying how people eat, something he’s continuing to do today.

Another possible way to frame this story: American suburbs are often assumed to be similar. They are based around single-family homes, driving, and a particular lifestyle.

But leaders and residents within a community can often describe what makes their suburb different from other suburbs. We have this particular trait. There is this historical event that shapes who we are today. We are different from neighboring suburbs because of this.

The particular difference here is having a designation as a “blue zone.” And this seems related to a particular religious group in the community, Seventh-day Adventists. There is a Seventh-day Adventist university in the community that describes itself as having an emphasis on “health, science, and faith.” Not every suburb would have a concentration of this particular group that is a smaller conservative Protestant denomination.

So what helps distinguish Loma Linda from other suburbs near Riverside and Los Angeles? A concentration of particular Christians that is linked to longer life expectancy.