They are known as singles, singletons, the never married, the divorced and the widowed. What they share is that they are part of the country's fastest growing living unit - more than 31 million one person households in 2010, according to the U.S. Census. As we age, many of us start to worry about living alone and what it will look like. Wh'll help if I become ill? What if I feel lonely and isolated? We worry about maintaining social connections if we lose mobility. Join Karen Fischer, psychotherapist and learn about loneliness and helpful tips and how to maintain a happy and healthy lifestyle.