What 85 years of Harvard research says about the one thing that actually matters
Every year, without fail, Valentine's Day arrives and approximately half the population panics. The other half either performs romance with great enthusiasm, or greets the entire occasion with the kind of cheerful cynicism that comes from having watched too many flower deliveries go to the wrong address. (I am not judging. I have been in both camps.)
But here's what I keep thinking about, and what I think is worth your attention for more than the fourteen days of February: we are in the middle of a global loneliness epidemic that is quite literally killing people, and we're still treating love and connection as a once-a-year occasion that requires special packaging and panic-bought chocolates.
We treat connection like a reward for a good quarter. Something we'll do once the project is done, once the kids are back at school, once things calm down. (Things don't calm down. You know this. I know this. Let's stop pretending otherwise.)
THE RESEARCH SAYS: Harvard's Study of Adult Development, the longest happiness study ever conducted, now in its 85th year and spanning two generations, reached one unambiguous conclusion: the quality of your close relationships is the greatest predictor of your health, happiness, and longevity. More than wealth. More than IQ. More than status, fame, or how many emails you answered before 7am. The people who stayed most connected to others stayed healthiest and lived longest.
, Harvard Study of Adult Development / WBUR, 2025
Dr. Robert Waldinger, who leads the study now, said something that I think deserves to be put on every boardroom wall in America: 'Loneliness kills. It's as powerful as smoking or alcoholism.' Not metaphorically. Literally. Physiologically. The absence of warm connection is a health risk on the same scale as a two-pack-a-day habit.
And yet. We live in workplaces where people sit three feet apart from each other and communicate primarily through Slack. We have dinner with our families while checking our phones. We schedule time with friends and then cancel it because something 'came up.' (Something always comes up. It's not the schedule. It's the priority.)
What This Means at Work
For those of you in leadership, and I mean leadership broadly, because if you influence even one other human being, you are a leader, this research should stop you in your tracks.
The data on belonging in the workplace is extraordinary. Harvard Business Review found that high belonging was linked to a 75% reduction in sick days. A 56% improvement in performance. A 50% drop in turnover. These are not soft, feel-good numbers. These are business numbers. And they all come from one thing: people feeling genuinely connected, valued, and seen.
Not managed. Not evaluated. Not measured against a KPI. Seen. As in: 'I notice you. I'm glad you're here. What you bring matters.'
When was the last time someone said that to you at work? When was the last time you said it to someone else? (If you're squirming slightly right now, that's useful information.)
THE RESEARCH SAYS: Gallup's global wellbeing research, 145,000 interviews across 144 countries, found that feeling respected and having someone who cares about your wellbeing were among the strongest predictors of positive daily experience. More than salary. More than title. More than perks. People need to feel they matter to another person.
, Gallup Global Wellbeing Study
So What Do We Actually Do?
I want to suggest something radical and also completely free: make connection intentional. Don't wait for Valentine's Day. Don't wait for the team offsite. Don't wait until things calm down. Start now. Start small. Start with one person.
- Call someone, a friend, a parent, a colleague you've been meaning to check on, and have a real conversation. Not a Zoom call with forty agenda items. A conversation.
- Tell one person today something specific that you appreciate about them. Not 'great job' (too vague, lands like wallpaper). Specific. 'The way you handled that client call yesterday, that took real skill and I noticed.'
- Put your phone face-down at dinner. (I know. Revolutionary. Do it anyway.)
- In your next team meeting, start with one question: 'What's one thing going well for you right now?' Give people thirty seconds each. Watch the room change.
- Write the bowl of love notes. (This is from one of my very old newsletters, you write everything you love about someone on little pieces of paper, put them in a bowl, wrap it up. They'll keep it forever and read it every time they need a lift. Cost: zero. Impact: enormous.)
"The warmth of your relationships is not a nice-to-have.
According to 85 years of Harvard research, it is the whole point.", Amanda Gore
Love isn't just for February. It's for Tuesday morning when someone on your team is struggling. It's for the phone call you've been putting off for three weeks. It's for the moment in the mirror when you decide whether to be kind or critical about what you see.
The science is in. Love connects us. Connection heals us. And it turns out, quite wonderfully, that it also makes us better at our jobs, better in our relationships, and significantly more fun to be around at Christmas parties.
Choose connection. Today. Not tomorrow. Today.
