A full moon over Cinderella Castle at Disney World on Dec. 21, 2010, in Lake Buena Vista, Fla. David Roark/Disney/Getty Images hide caption

itoggle caption David Roark/Disney/Getty Images

Mike Green texts now, but he didn't in 2005, when his now ex-wife began an affair with her colleague via text messaging. He hopes he can trust again; he gets suspicious whenever a girlfriend texts someone else. Courtesy of Mike Green hide caption

itoggle caption Courtesy of Mike Green

Carolyn and Sorin Popescu, with their daughter, Lina. After many arguments over Sorin's constant iPhone usage, the couple developed some ground rules. For example, Sorin now limits texting until after Lina's bedtime. Courtesy of the Popescus hide caption

itoggle caption Courtesy of the Popescus

Originally from St. Louis, Mo., Jada Irwin moved to the Washington, D.C., metropolitan area for work. As a single woman, she likes where she lives, but if she were to have children, she says, she would move to South Carolina or somewhere similarly less expensive. Mito Habe-Evans/NPR hide caption

itoggle caption Mito Habe-Evans/NPR

Dibby Johnson (left) with colleagues Justin Pinder and Dominique Hodo at EchoDitto, one of two of Johnson's current consulting jobs. Courtesy of Dibby Johnson hide caption

itoggle caption Courtesy of Dibby Johnson

MIT researchers wore the Age Gain Now Empathy System -- a body suit and helmet -- to a grocery store to understand what struggles seniors might have while shopping. Courtesy of MIT's AgeLab hide caption

itoggle caption Courtesy of MIT's AgeLab

New Millennial Homes designed this ranch house for Jim and Cheryl Waggoner in Tampa Bay, Fla. Jennifer Ludden/NPR hide caption

itoggle caption Jennifer Ludden/NPR

Edward and Lavinia Fitzgerald in Savannah, Ga., have dinner while telecaregiver Denise Cady of ResCare, a camera monitoring service, looks on. Jennifer Ludden/NPR hide caption

itoggle caption Jennifer Ludden/NPR

Betty and Jack O'Connor want to stay in their Chevy Chase, Md., home as they age and are trying to create a network of volunteers in their neighborhood, called a "village," to help them with tasks they can no longer handle. Jennifer Ludden/NPR hide caption

itoggle caption Jennifer Ludden/NPR

A new study finds nearly a quarter of couples met online. iStockphoto.com hide caption

itoggle caption iStockphoto.com