Anyone who has gone through the process of disentangling themselves from an addiction knows it's an ongoing, daily battle. It may get easier, and the payoffs may become more apparent, but it's still a decision someone makes each day to stay detached from their substance of choice.

Seeing someone who has a long record of sobriety—especially after a very public struggle—can be motivating and inspiring for others in different stages of their recovery journey. That's part of why actor Rob Lowe's announcement that he's reached 31 years sober is definitely something to celebrate.

"Today I have 31 years drug and alcohol free," Lowe wrote on Twitter. "I want to give thanks to everyone walking this path with me, and welcome anyone thinking about joining us; the free and the happy. And a big hug to my family for putting up with me!! Xoxo"

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