Dr. Waldinger adds that his work on this study has made him more cognizant of the role his wife plays in commanding their social life -- and to what extent he's doing his part.
"I have to actually think to myself, 'Am I keeping up with my friendships, with my individual friendships?'" he says. "I have to pay a lot more attention to my individual friendships, or they would just go away."
Bottom line: Focus on where you're spending your time
In his TED Talk on happiness, Dr. Waldinger mentioned that over 80% of millennials listed "getting rich" as a major life goal, followed by 50% wanting to be famous. These ambitions are all well and good... except they aren't proven to lead to health or happiness. So they're not all well and good, actually.
"A lot of people, especially young adults, are trying to figure out 'where do I invest my time?'" Dr. Waldinger says. "So you can spend your whole time -- nights and weekends -- working to advance your career, and that would probably advance your career. But it might really screw up your life."