Why It’s Worth It | Do we want to chase living forever or chase having as much joy as we can for as long as we can? What if aging well has less to do with genetics than we assume? And more to do with four things we can actually work on starting today? 

In this episode of 10% Happier, host Dan Harris sits down with gerontologist Dr. Kerry Burnight to reframe the conversation about aging from dread to something far more useful: preparation. Drawing on her book Joyspan, Kerry makes the case that lifespan and healthspan are incomplete without a third measure that accounts for the psychological, emotional, and relational richness of the years we live. Their conversation covers the four habits that drive joyspan, the genuine upsides of aging that nobody talks about, and why the anti-aging industry profits most when we are most afraid.

Kerry opens by naming the problem with the anti-aging industry in blunt terms: it profits when we fear and loathe the very thing we are supposed to do, which is grow older. The messaging is built around how not to age, when the far more useful question is how to age. She is not soft-pedaling the hard parts. After decades at bedsides and in clinical practice, she is clear-eyed about what aging involves. But she has also watched thousands of people navigate it, and she has seen enough people do it well to believe that well-being in the later years is less a matter of luck or genetics than most of us assume. Research suggests genetics accounts for less than 25% of how we age, sometimes as little as 13%. The rest is within reach.

Dan and Kerry work through the four habits Kerry organizes under the name Joyspan, each framed deliberately as a verb. The first is grow. People who continue to challenge themselves intellectually and personally, who stay curious and take on hard things, tend to show greater emotional stability and higher well-being over time. The three internal factors that enable growth, she argues, are self-acceptance, curiosity, and humor. Self-acceptance clears the mental space needed to actually look forward. Curiosity keeps the door open to what might come next. And humor, which research suggests can be cultivated deliberately, allows us to be bad at new things without it meaning something terrible about who we are.

The second habit is connect, and the data behind it is substantial. The Harvard longitudinal study, running for 85 years, found that the quality of our relationships was among the strongest predictors of a long and satisfying life. Kerry’s practical contribution here is the concept of diversifying our social portfolio by deliberately building relationships across ages and life stages, rather than concentrating all of our connections in a small group that may not outlive us. She is also direct about what building connection actually requires: initiative. Waiting to be included is not a strategy. Being the one who reaches out, makes the plan, and shows up is.

The third habit, adapt, acknowledges a fact Kerry refuses to tiptoe around: hard things will happen. Diagnoses, losses, and changes in capacity are not worst-case scenarios; they are the terrain. Her coping toolbox draws on both internal strategies, like journaling, meditation, and gratitude practice, and external ones, like seeking support and deliberately redirecting attention outward toward other people’s needs. 

The fourth habit, give, closes the loop. Offering what we have to others, whether time, presence, hard-won perspective, or practical help, turns out to register at a biological level. Research on sense of purpose shows measurable differences in how genes related to inflammation are expressed. If purpose were a drug, she notes, we would all be chasing it.

Background | In this episode, Dan speaks with Kerry Burnight, a gerontologist, former professor of geriatric medicine at the University of California, Irvine School of Medicine, and author of Joyspan: The Art and Science of Thriving in Life’s Second Half. Highlights include: 

• Joyspan, not just healthspan: Lifespan counts years. Healthspan counts healthy years. Joyspan adds the piece most longevity conversations leave out: the psychological, emotional, and relational quality of those years. All three are worth tending.
• Genetics is a smaller player than we think: Research suggests our genes account for less than 25% of how we age, sometimes as little as 13%. The habits we build (growing, connecting, adapting, giving) carry more weight than the family tree.
• Diversify the social portfolio: Concentrating all of our connections in a small peer group may mean we outlive all of our friends. Building relationships across ages and life stages, and being the one who initiates them, is one of the most practical investments we can make.
• The upsides of aging are real: Less concern about what others think. Greater emotional stability. Deeper appreciation of friendship, nature, and art. These are not consolation prizes; they are documented outcomes that tend to strengthen over time, and we can pull them forward with intention.
• Grow on purpose: Self-acceptance, curiosity, and humor are the three internal conditions that make continued growth possible. Being bad at something new is not a setback. It is the first step, and it turns out to be good for inflammation levels, too.
• Give as a biological act: Research shows that people with a strong sense of purpose (rooted in contributing to others) show different gene expression patterns related to inflammation and immune function. Giving is not just morally useful. It is physiologically useful.

Source | 10% Happier: Longevity Science without the Fear or B******t – Episode 1049 (November 17, 2025)

About | Dan Harris is a former national news reporter who turned to meditation to manage the stressors of a high-pressure on-air career. A self-dubbed “fidgety skeptic,” he brings a practical perspective to a seemingly abstract practice. Dan currently hosts the 10% Happier (TPH) podcast, which delivers conversations with meditation teachers, researchers, and even the odd celebrity. He is also a former co-founder of the Happier meditation app. Dan’s over-arching philosophy is simple yet profound: he believes happiness is a skill that can be learned.