[A]s Christian parents ponder an appropriate sacrifice, they find themselves mulling a choice they’d have once seen as preposterous: A Facebook fast — not for their teens but for themselves.

Lenten sacrifices are meant to honor and in a small way reenact the 40 days Jesus is said to have wandered the wilderness, fasting and resisting temptation. Abstaining from Facebook for the 40 days of Lent was the rage among college students last year. This Lenten season — which starts next week on Ash Wednesday — the cause has been taken up by a surprising number of adults. The digital sacrifice won’t be easy, they say, but it may help them reclaim their analog lives.

“If I give up clams, which I hate, I’m not really doing anything,” says Kevin Shine, a 39-year-old electrical contractor from Philadelphia. But abstain from posting “status updates” on his every move? That’s a worthy struggle. “It’s my candy,” he explains, noting that he logs on as much as 20 times a day. “That’s pathological.”
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College students who have abstained from Facebook for Lent in recent years say it was brutal, but valuable. Whitley Leiss, now a junior at Texas Christian University, slipped up only once, on her birthday, when she was desperate to see the well-wishes posted for her. She asked a roommate to log into her account and read them aloud while she averted her eyes from the screen. When Lent ended, she logged on to find dozens of messages waiting and strangely little desire to answer them.

“I saw all that I had missed,” Ms. Leiss said. “And I realized I hadn’t missed anything.” She also learned, she says, who her true friends were — those who would take the radically retro step of calling or emailing to stay in touch.