Crossfit Is My Church

A 2012 Pew study tracked the rise of a new religious group: the “nones,” or the religiously unaffiliated. One-fifth of Americans—and a full third of adults under 30—say they belong to no religion at all.

Yet, argues Casper ter Kuile, a researcher at Harvard Divinity School, this group is still looking for elements of religious experience. His 2015 study explores ways modern ...