NEW YORK — When Jennifer Lea Austin met Molly in second grade, they quickly became best friends. They giggled through classes until the teacher separated them, inspiring them to come up with their own language. They shared sleepovers and went on each other's family vacations.
But they gradually drifted apart after Austin's family moved to Germany before the girls started high school. Decades passed before they recently reconnected as grown women.
''Strong friendships really do stay for the long haul," Austin, 51, said. "Even if there are pauses in between and they fade, that doesn't mean they completely dissolve or they go forgotten. They're always there kind of lingering like a little light in the back.''
Early friendships are some of the deepest: the schoolmates who shared bike rides and their favorite candy. The roommates who offered comfort after breakups. The ones who know us, sometimes better than we know ourselves.
But as adults take on jobs and the responsibilities of homes and families, it can be challenging to stay connected with everyone we've loved.
Technology plays a role, too. Loneliness has increased since the television was invented and intensified with the introduction of smartphones, according to psychologist Marisa Franco, a University of Maryland assistant clinical professor and author of ''Platonic,'' a book about the science of attachment.
Once they've lost touch with friends, some people are reluctant to reach out, fearing rejection. But most of those on the receiving end appreciate the effort more than we expect, Franco said.
''People are delighted to hear from their old friends and open to connections,'' she said.