A 37-year-old man from the USA has shared his dramatic transformation since he gave up drinking alcohol.
The pictures chart a remarkable change in his physical - as well as mental - health after three years of sobriety.
Kenny D, a railroad engineer in America's Pacific Northwest, started drinking when he was a university student. Eventually he became aware that once he'd started he couldn't stop, and he would end up drunk every time he drank.
That set him into a spiral that eventually saw him hit rock bottom and drinking every day to excess.
Despite periods of abstinence from drinking, at his worst he was getting blackout drunk three or four times every week and drinking between 12 and 24 drinks per day.
He realised that he needed to make a change and, with that in mind, he started attending Alcoholics Anonymous meetings.
For those who are unfamiliar, AA teaches a 12 step programme and encourages people to take their journey to sobriety in small steps at a time.
To mark milestones, each member receives a chip to commemorate their efforts in staying sober. Kenny decided to take a mirror selfie each time he received one of those coins and document the journey.
The results are incredible.
He told Bored Panda: "I took a picture of myself the day I got my first sobriety coin, 24 hours sober. I felt so ill and I looked so bad, I wanted to remember it so I wouldn't forget.
"The day I got my 30-day coin, I thought my look had changed drastically so I took another selfie."
As you can see, he's right.
So, he kept on keeping himself off the booze, and taking selfies to prove he was making a difference.
Not only does he look fitter (he lost a heck of a lot of weight), he looks much happier as he goes along too.
He explained: "I could not drink without getting drunk.
"The biggest difference between myself now and three years ago is that today I live my life by a set of spiritual principles.
"From morning to night, I run all of my decisions through a sort of spiritual filter.
"I do my best to not be resentful or spiteful or angry, though I am human and I have a tendency to forget sometimes. I'm not a saint.
"If I have a problem that I can't tackle with stuff in my normal spiritual toolkit, I get on the phone to my sponsor or another alcoholic-in-recovery.
"There is always somebody around to help, I just have to reach out."
Well, it looks like it's working for him, that's for sure.
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Featured Image Credit: Kenny D
Topics: Daily Ladness, Inspirational, Interesting, US News