Rob Kardashian was noticeably absent from the Kardashian family trip to Thailand last week and now we know the reason why. Rob is currently in rehab at Dawn at The Meadows treatment facility in Arizona. He's currently battling weight issues, depression (which he's talked about on the show) and substance abuse, namely a growing dependency on lean.

According to Star magazine, Kourtney, Kim and Khloe's baby bro has been in rehab for about a month now, and is "feeling stronger and more relaxed without the incessant berating from everyone. I would love to see him show up a changed man at Kim's wedding and gain some independence."

An insider revealed that Rob's lean habit is a main reason he's gained so much weight.

HollywoodLife.com spoke with Rob, who told the site "My number 1 goal is working on my sock business and getting my health straight, losing a bunch of weight and feeling good and happy again. We have all been working out more — me, my mom, and Kim. Khloe has been going hard, we kinda all do. Kendall even started hitting the gym and she never use to hit the gym because she's just young and she's skinny but now [she does]. We are all helping each other out and I'm trying to lose a crazy amount of weight. I've been struggling and it's a new year so we are all kinda on the same page."

It seems the whole family is trying to get healthier.

Source: HollywoodLife