‘Researchers Say They’ve Cracked The Code To Being Happy’, http://newyork.cbslocal.com/2015/06/05/researchers-cracked-code-happiness/, CBSNewYork (June 5, 2015).

The code

After decades of studying and working with tens of thousands of patients, researchers at the Mayo Clinic say they’ve cracked the code to being happy. (…) Dr. Amit Sood led the research and says the first and foremost way to be happy is to focus our attention.