Wellmark Blue Cross and Blue Shield and Healthways announced Thursday that Mason City has been certified as a Blue Zones Community, recognizing the north-central Iowa city's successful implementation of the Blue Zones Project. The Blue Zones Project is the centerpiece of the Healthiest State Initiative, designed to make Iowa the healthiest state by 2016. Community leaders, volunteers and organizations in Mason City have been working to gain certification since May 2012. In addition to communities, many workplaces are also working toward providing a healthier environment for employees as Blue Zones Worksites, according to this week's Business Record cover story