It's hard to believe that Kourtney Kardashian has had three children with a body like that, but the 36-year-old reality star recently opened up about how working out has been a serious coping mechanism for her ever since she and her longtime boyfriend Scott Disick split.

In a candid blog post on her website, Kardashian explained that she's been suffering from anxiety recently and has been focusing on her fitness as a way to not only lose the baby weight from her 1-year-old son Reign, but to help her stay calm since she and Disick broke up in July. She announced the blog post with a mirror selfie on Instagram, writing, "Coping with anxiety. On my app. Link in bio." 

"Everyone deals with hard times in their lives differently. I'm generally not a nervous person but I get anxious," she wrote. "I also get nauseous and feel like I can't eat when it is really bad, but I force myself to stay healthy. One thing I've found that really helps is working out...I try to exercise 5 days a week. My anxiety is always worse in the mornings so that's when I schedule my workouts. I usually start with a quick run or jumping rope to warm up."

Kardashian and Disick split over the summer after nine years together when he was spotted getting cozy with stylist Chloe Bartoli on vacation, as HNGN previously reported. The two have three children together, Mason, 6, Penelope, 3, and Reign.

"I couldn't wait to feel strong and in shape again," she continued to write. "I didn't know that I would be going through a breakup and just an overall crazy year...People are very quick to judge others by appearances by you truly don't know what someone's motivation is or what is going on inside them. For me, exercise is as much about my body as it is about calming my mind."

In a recent and emotional episode of her famous family's hit reality show "Keeping Up With The Kardashians," which was filmed around the time they split, Disick finally opened up to Kardashian and her sisters for the first time since the breakup.

"I understand that I need to help myself way before I can help her [Kourtney] or my kids, but it's just been a really hard time," Disick said as he held back tears. "I've never been as unhappy in my life. If I didn't have those kids, I would kill myself. But I have them, and I'm gonna be here and I'm gonna make it right for them."