Resarchers analyzed the conversation snippets and categorized them as either small talk or more substantive ones.
Results showed that the happiest person had twice as many substantive conversations, and only one-third of the amount of small talk as the unhappiest person.
Small talk made up only 10 percent of the happiest person's conversation while it made up almost three times as much of the unhappiest person's conversation.
This study is indeed interesting. However for me, it poses a which-one comes-first-the-chicken-or-the-egg type of question. Do people talk deep because they are already happy to start with? Or do they talk deep in order to become happy?
This study has also has subjectivity screaming from all its seams. I still find its results counterintuitive. I look forward to more studies about the subject in the future.