The ongoing debate over whether or not children should be vaccinated has increased in volume and urgency this winter, in the wake of a nationwide measles outbreak that has now topped 100 cases. While we must wait 492 more days to read former Laguna Beach star Kristin Cavallari's thoughts on the matter in her debut book, Balancing on Heels, we can look at what she's said on the topic in the past to guide our discussion today.

It's Sunday, and there are 493 days until Kristin Cavallari's book drops, and maybe today you are just taking some time to yourself to reflect on the week past. Maybe you're even repenting for your sins. Kristin's not. In a recent interview posted to her eponymous app, she proclaimed, "I don't really have any regrets or huge mistakes."

There are still 494 days until Kristin Cavallari's first book, Balancing on Heels, drops. So what will you read today, on a boring Saturday so far in the distant past, instead? Kristin has a recommendation. When asked in an interview with DWNLD, an app-making company, what her favorite app is, Kristin responded: "I guess I have to say mine!"

On the 495th day before Kristin Cavallari's debut lifestyle book Balancing on Heels drops, she's discovering what her audience loves about her. Explaining to the hosts of Good Morning America why people appreciated it when she posted her husband Jay Cutler's harried texts on Instagram, Kristin said, "It's refreshing to see that Jay and I are just like everybody else."

Four hundred and ninety-six days until Kristin Cavallari's debut book Balancing on Heels drops, and today she points us to a mystery. Might she explain this mystery in her book? Hard to say, but here it is: If Kristin had to pick one person as her best friend, who would she pick?

Flaubert once noted that "the art of writing is the art of discovering what you believe." This couldn't be more true for Kristin Cavallari, who is discovering through writing that she believes in carbs, but only some carbs—not the white ones. On the 498th day before her game-changing tip book Balancing on Heels drops, Kristin has made us a food diary.

Kristin Cavallari's first book, Balancing on Heels, drops in approximately 500 days. Starting today, we will begin marking the days on our calendar, which is a special two-year calendar, so don't worry, it has enough days. We will also mark the days here on Defamer, every day, for the next 500 days. What's happening on Day One of 500 Days of Kristin? Kristin's leaning in.

What will you be doing roughly 13-17 months from now? Maybe you'll finally be taking a stay-cation in sunny Tulum, where you could live by then. Perhaps you'll be starting a new job at the soda can factory. You might even be well into your second pregnancy if you start on the first one right now. Change is scary, but take comfort in the knowledge that while your life may look different 400-500 days from now, one thing is for certain: you'll be able to read former Laguna Beach star Kristin Cavallari's first book then, probably.

Reality star-turned-anti-vax mom Kristin Cavallari is still pretty "butthurt" over all the drama on Laguna Beach, which premiered 10 years ago. In a tearful interview with Oprah (?) that will air Sunday, K-Cav confesses that she felt "used" and "manipulated" on the show.

In a Thursday interview on Fox Business channel, former reality "star" Kristin Cavallari admitted that she and her husband, Chicago Bears quarterback Jay Cutler, do not believe in vaccinating their children due to autism fears.

When The Hills ended its six-year-run in 2010, pulling the camera back to reveal Kristen's limo slowly pulling away from Brody only to drive in circles around an MTV soundstage, it came as no surprise that the reality show was about as real as Justin Bobby's name.