The Secret to a Happy Life — Lessons from 8 Decades of Research | Robert Waldinger | TED
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The happiest and healthiest people are those who have warm connections with others, says psychiatrist Robert Waldinger, who leads the Harvard Study of Adult Development -- one of the longest-running studies of adult life ever conducted. Exploring the crucial link between social bonds and quality of life, he shares wisdom and insights into how to identify and strengthen the relationships that impact your well-being most. When it comes to the people in your inner circle, "Turn toward the voices that make you feel more open and more inclusive," he says.
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Waldinger argues that warm, secure relationships are the single most powerful determinant of lifelong health and happiness, supported by 85+ years of longitudinal data showing relationship quality predicts physical health, longevity, cognitive function, and life satisfaction better than any other factor.
- The Harvard Study of Adult Development tracked 2,000+ people since 1938 and found those with warm relationships are happier, healthier, age slower, and live longer
- Good relationships act as stress regulators, reducing chronic inflammation and circadian stress hormones that damage health
- Even small, casual social interactions provide measurable well-being benefits, and relationships can be intentionally strengthened through social fitness practices
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Good relationships act as stress regulators, allowing people to return to equilibrium when stressors occur, whereas isolated and lonely people lack these stress regulators and remain in chronic fight or flight mode.
“good relationships turn out to be stress regulators. So let me give you an example. Let's say that I have something upsetting happen to me during the day, and I find myself, like, ruminating about it and really thinking about it and unhappy. I can feel my body go into what we call fight or flight response where literally my heart rate goes up and I might start sweating a little bit and I'm just not feeling as well. Now, what we're meant to do is to come back to equilibrium when a stressor goes away. That's the way the body is supposed to work. But what happens if I go home at the end of my upsetting day and I have somebody to talk to? Either I can call someone on the phone or it's somebody I live with. I can literally feel my body calm down. I can feel that fight or flight response subside. But what if I don't have anybody to go home to? What if there's nobody I can call? What we find is that people who are isolated, are lonely, don't have those stress regulators that we get from good relationships and that we stay in chronic fight or flight mode”
People who have good, warm connections to others turn out to be the happiest and healthiest across hundreds of people studied over their entire adult lives.
“The finding that when we study hundreds of people over their entire adult lives, the people who turn out to be the happiest and the healthiest are those who have good, warm connections to others.”
When people in their 80s were asked to look back on their lives and say what they were proudest of, almost everybody mentioned their relationships, not money or awards, with statements like 'I was a good mentor,' 'I was a good friend,' 'I raised healthy kids,' or 'I was a good partner.'
“When we asked these same people, when they got to be in their 80s, to look back on their lives and to tell us what they were proudest of, almost everybody said something about their relationships. They didn't say, 'I made a lot of money' or 'I won some big awards.' They said, 'I was a good mentor,' 'I was a good friend,' 'I raised healthy kids,' 'I was a good partner.'”
All types of relationships—friendships, relatives, work colleagues, casual contacts, and even brief interactions with strangers—support well-being, not just intimate relationships.
“All types of relationships support our well-being. So friendships, relatives, work colleagues, casual contacts. The person who gets you your coffee every morning at Starbucks or Dunkin' Donuts, the person who checks you out in the grocery store, who you see maybe every week. Even talking to strangers has that benefit.”
In an experiment, people assigned to talk to strangers on the subway reported being much happier at the end of the task than people assigned to do their usual thing of being on their phones, listening to music, or reading, despite thinking beforehand that they wouldn't enjoy talking to strangers.
“They did an experiment where they assigned some people who were about to go on the subway the task of talking to a stranger while other people were assigned the task of just doing their usual thing of being on their phones or listening to music or reading. It turned out that the people who were assigned to talk to strangers didn't think they were going to like it, but they turned out to be much happier at the end of the task than the people who just rode the subway keeping to themselves.”
The Harvard Study of Adult Development is the longest study of the same people ever done, following people since 1938 from adolescence through old age and now following all of their children, thousands of lives.
“I do direct this Harvard Study of Adult Development. It's, as far as we know, the longest study of the same people that's ever been done, following people since 1938. From adolescence all the way through old age, and now following all of their children, thousands of lives.”
While we cannot guarantee that any one person will stay happier or live longer if they have better relationships, better relationships act as protective ingredients for health, similar to how not smoking, not abusing alcohol or drugs, exercising regularly, and getting regular health care protect health.
“we can't guarantee that any one person is going to stay happier or live longer if they have better relationships, but we find that there are these ingredients, just like taking care of your health -- you know, not smoking, not abusing alcohol or drugs, exercising regularly, getting regular health care, having access to health care. All of those things really matter for our health.”
Having at least one person in your life who you feel really has your back and who you could go to if you were in trouble is essential for maintaining happiness and health.
“having at least one person in your life who you feel really has your back, who you could go to if you were in trouble, that's essential for maintaining our happiness and our health.”
Ways to strengthen relationships include being proactive by reaching out to friends, establishing regular routines with important people, livening up long-standing relationships by proposing new activities, connecting around shared interests through volunteering or community groups, and getting more comfortable striking up casual conversations.
“Well, one way is to be proactive, to take the initiative. So to reach out to a friend and ask her to take a walk instead of spending two more hours on your laptop this weekend on Saturday afternoon. Establish some routines with the people who are most important to you. A regular phone call or a coffee every Saturday with someone you really want to be sure you see regularly. Or meeting somebody at the gym. Or having lunch with a coworker. The other thing we can do is liven up those long-standing relationships, particularly like the people we live with. You know, people we can come to take for granted, by proposing to do something new. Going out on a date, just taking a walk, if that's not your usual routine. The other thing that we know works to help people, particularly who aren't as connected to others as they want to be, is to connect around shared interests. So volunteer in the community to do something that you care about. It might be a gardening club, it might be a bowling league, it might be a political cause. But to do something that you care about because then you're with other people who care about the same thing, and that's a natural place to start conversations that can lead to ongoing relationships. And finally, get more comfortable striking up casual conversations. That's something we can learn to be more comfortable with, almost like exercising a muscle.”
All people differ in how much connection they want and benefit from, with introverts needing fewer connections than extroverts, and it's important to determine what's right for each individual person rather than applying a one-size-fits-all standard.
“We are all different in how much connection we want and benefit from. So some of us are introverts, and that's just fine. That's perfectly normal. And introverts don't want a lot of connections. In fact, being with a lot of people is exhausting for introverts. And so some people just need one or two good relationships. Everybody needs a little bit of connection. But some people actually don't need a lot. And so what we want to do is try to figure out for ourselves what's right for me.”
Many social skills are learned during childhood in families, schools, and playgrounds, and can be learned and improved into adulthood, so they are not fixed by the end of childhood.
“many of our social skills we learn when we're growing up. We learn it in our families, we learn it at school and on the playground. They can be learned, and they can be improved as we get into adulthood. They're not set in stone once we're done with childhood.”
Parents should teach children that unhappiness is temporary and feelings come and go, and should model for children that disagreements can be worked through while maintaining good relationships.
“And helping kids learn that it's OK to be unhappy and that that will pass, that feelings come and go. That it's OK to disagree. Families can model, parents can model for kids. We can have disagreements. We can work it out and and hold on to these good relationships even through disagreements.”
It is never too late for isolated and unhappy people to obtain happiness and community, even in their 60s or later, as evidenced by people who found whole communities they never dreamed they would find.
“we have a couple of life stories in our book, the book contains real stories of real people. The names are disguised to protect confidentiality. But some of those stories are of people who have big turnarounds late in life, people who were isolated and less happy and in their 60s found a whole community. One man found a community at a gym that he never dreamed he would find. And so the message that we get from studying these thousands of lives is: it is never too late.”
Happiness makes us age more slowly and keeps us able longer, with the diseases of aging happening later or sometimes not at all in people who are happier and have greater well-being.
“happiness turns out to make us age more slowly and keep us able longer. So the diseases of aging that happen to all of us, happen later, sometimes they don't happen at all in people who are happier have a greater sense of well-being.”
In research, no single study is proof of anything; instead, researchers want different studies of different populations (ethnic groups, cultural groups, different geographies) to point in the same direction to establish a finding.
“particularly in this kind of research, no single study is proof of anything. That what we want is for different studies of different populations. So different ethnic groups, different cultural groups, different geographies, right? We want different studies to point in the same direction.”
Researchers initially disbelieved the data showing relationships affect physical health and had to wait for other studies to replicate the findings before accepting that warm relationships actually get into bodies and shape health.
“We didn't believe the data at first. We thought, how could this be that relationships actually get into our bodies and shape our health? But then other studies began to find the same thing.”
Many of the happiest people had quieter lives, meaning that people can be happy without being social butterflies or extroverts.
“Many of our happiest people had quieter lives.”
The Harvard Study plans to make its data publicly available on public websites for other researchers to use and ask their own questions, since the work has been funded by federal government and taxpayer money.
“we see ourselves as wanting to make our data available to more and more researchers. So we want to collaborate, and we do collaborate, with other research groups. We say, come in and use our data and ask new questions that we don't even think to ask. Because we have this treasure trove of information about thousands of lives. And then we're going to make it publicly available on public websites, because, you know, much of our work has been funded by the federal government, by NIH, with taxpayer money. And so we feel a responsibility to make this information available to other researchers who want to ask their own questions about our data.”
The study has evolved from starting with 724 male participants to now having over 2,000 people including more than half women and a second generation of participants, with data collection ongoing.
“we started out with boys, all males, but we've added women. And we have more than half women now, and we've added the second generation. So we started out with 724 people. Now we have over 2,000 people in our study and we're still collecting data today.”
A TEDx talk the speaker gave in 2015 in an elementary school auditorium became one of the 10 most-viewed talks in the history of TED, with a core message about good warm connections and health.
“In 2015, I gave a TEDx Talk in a little elementary school auditorium, and much to my surprise, the talk became one of the 10 most-viewed talks in the history of TED. And in that talk, I conveyed one simple scientific finding.”
Social fitness, like physical fitness, is a practice that needs to be maintained over time and cannot be assumed to take care of itself, as even good relationships need tending, attention, and returning to them over and over again.
“we've come to think about it as a kind of social fitness. If we think about physical fitness, you know, we we think, OK, I'll go to the gym, I'll work out, I'll take a long walk, I'll do something to keep myself strong and fit. But then we come home and we don't say, I'm done, I don't ever have to do that again. We have the sense that physical fitness is a practice that we need to maintain over time. It turns out that social fitness is the same. That in fact, our friendships, our relationships don't just take care of themselves, that even good relationships need tending to, they need attention. They need returning to them over and over again.”
Parents should help children learn to pay attention to how they feel and use their feelings with more choice, including learning to love what they love even if it's not popular.
“For parents, it's really helping your children to pay attention to how they feel and to learn to use their feelings with more choice. So learning to love what they love and hang on to what they love, even if it's not so popular.”
Understanding that everybody has struggles in their life, even those whose lives appear perfect, helps people feel less alone and isolated.
“everybody has struggles in their life. That has been so meaningful to me because I can also look at the world and say, "Gee, other people seem to have lives that have it all figured out and perfect lives." It is so helpful to know that there isn't a person on the planet who doesn't have struggles. And it makes me feel less alone when I can recognize that.”
Directing the Harvard Study has led Waldinger to prioritize relationships over work, making him more active in taking care of his relationships, which makes a big difference.
“the other thing that it's changed is my own priorities. So I realize, OK, I can sit here this afternoon and edit another paper or do more work, or I can see my friend who I haven't seen in a month. And so I've become more active in taking care of my relationships, and it makes a big difference.”
Small actions of reaching out and making contact with people have ripple effects that build well-being and can be done every day in the moment.
“The point of this simple exercise is to remind us that even small actions can have ripple effects that build our well-being. And that these are things you can do every day in the moment.”
Social fitness can be assessed by checking in and asking whether you are as connected as you would like to be to other people, and if not, identifying what you are missing.
“how do we assess our social fitness, it's really checking in and saying, am I as connected as I would like to be to other people? And if I'm not, what am I missing?”
A meaningful relationship is characterized by authenticity and the ability to be yourself in the most essential ways, express yourself, and feel known and seen rather than maintaining a façade.
“One way to think about it is not whether the relationship is smooth all the time, but whether we feel that we can be authentic, we can be ourselves in a relationship. And obviously, we won't be the same selves in a work relationship that we might be with our, you know, beloved sister, you know. But still, can I be myself in the most essential ways? Can I express myself? And can the other person express themselves? Because I think that's where -- what we really want is to feel known and to feel seen and not to feel like we are having to maintain a façade that hides who we are.”
A challenge to listeners is to think of someone they miss or haven't contacted in a while and send that person a simple text or note saying they're thinking of them, to observe what comes back.
“Here's my challenge to you: think about someone you miss, that you just haven't seen in a while or you haven't had contact with, and you'd like to make contact. You don't even have to have a particular reason. Now I want you to take out your phone or whatever device you use, right now, and send that person just a little note. It could say, "I'm just thinking of you and wanted to connect."”