text: Kristen Bell, the voice of Frozen's Anna and the spunky star of House of Lies, believes that parents take the anti-vaccination debate too far and endanger other kids while they are at it. 'Your child is 100 times more likely to be struck by lightning than to have a severe reaction to a vaccine; that's a fact,' Kristen said in an interview for the May issue of Good Housekeeping. The mother of two daughters, Lincoln, two, and Delta, just four months, with actor Dax Sheppard shares how her views on vaccinations actually changed after the birth of her girls, as well as her own self-acceptance of her changing body and the hustle of her acting career. Scroll down for video . Cover girl: Frozen's Kristen Bell features on the front cover of Good Housekeeping's May issue (pictured) Kristen takes a hard stance on vaccinating her kids and urges other parents to do so as well. Citing scientific research, she shares her intimate belief that it's her duty to not only protect her children, but other children, too - especially those who may suffer from autoimmune diseases or cancer. 'If your kid can't get vaccinations; if he goes to school with my kid and I choose not to give my kid vaccinations, I'm putting your kid at risk,' she said. 'To me, that's unacceptable.' 'As moms, our responsibility is not just to our kids - it's to all the other kids, too,' she added. Kristen adds that being a mother 'right-sized' her life and has changed her views on more than needles and preventative medicine. Kristen didn't have her first child until her thirties because she didn't actually think she wanted children at all. Now, however, she considers the parent life 'unmissable.' 'Having kids feels like that first seventh-grade crush that overwhelms every molecule in your body, but it’s permanent,' Kristen said. Peas in a pod: Kristen and husband Dax Sheppard credit couples therapy to the success of their marriage . On the town: Kristen and Dax may come from different backgrounds, but they sure don't look it while coordinating their pose on the arrivals carpet of The Judge premier in October 2014 . Always a self-proclaimed happy person, Kristen, like many women, was not always comfortable with her weight. But after kids, she really is not worried about the last 17 pregnancy pounds from Delta. "Body image is what you make of it,' Kristen explained. 'I don’t like comparison hangovers. It didn't make me feel good.' Nor does she rush for leads in the same way she did before. Pointing out that her kids are the source of her self-esteem now, Kristen still wants to do creative work, but isn't constantly running on the treadmill for it. Her positive attitude is admired by husband, Dax, who makes a cameo in the piece to talk about the secret to their relationship's success: couple's therapy. Often given a bad rep or the signal of the demise of the marriage, Dax and Kristen highlight all the pros of their experience, including how it helped them overcome their different backgrounds. 'You do better in the gym with a trainer, you don’t figure out how to cook without reading a recipe,' Kristen added. 'Therapy is not something to be embarrassed about.' In fact, her life looks quite different than it did just a few years ago. “It’s weird to me that all of a sudden I have a family of four,' Kristen exclaimed. 'I own two people! Our life has taken a turn, but not in a bad way.'
target: The Frozen star features on the cover of Good Housekeeping's May issue, in which she also discusses her relationship with husband Dax Sheppard .
  Kristen, 34, admitted that she and Dax attend regular therapy sessions together and insists it helps their marriage .
  The actress calls motherhood 'unmissable' and hopes her daughters understand the 'sisterhood of Frozen' one day .