Elina Berglund is the cofounder of Natural Cycles, the first app in the world to be approved as a contraceptive. She’s also a physicist who worked on the team that found the Higgs Boson particle at CERN (the European Organization for Nuclear Research), in one of the biggest science experiments of all time. But her success comes after plenty of challenges. In this episode she tells The Stockholmer how she tackled them. Unlike many podcasts, we say no to branded content and host-read advertising and safeguard the quality of our programmes by carrying out detailed research. You can support The Stockholmer’s fully independent journalism by making a one-off secure contribution of any amount. Click the DONATE button on thesthlmer.com.