Purpose vs. Relationships vs. Work: Which Actually Makes Life Fulfilling?

What actually makes life fulfilling: purpose, relationships, or meaningful work? I get this question from readers constantly, and after digging into the research, I'll give you my honest answer: purpose is the most reliable bet. But it's not the only game in town, and the best choice depends on your situation. Below I compare three options—purpose, relationships, and meaningful work—on three criteria: impact on longevity, daily experience, and feasibility. I'll tell you who each is for, and when to pick which.

Why purpose wins on longevity

If you want a single lever that reliably extends life, purpose is it. A 2022 study of 13,159 US adults aged 50 and older, followed for 8 years, found that a strong sense of purpose was associated with a 34% lower risk of death from any cause among women and a 20% lower risk among men (Shiba et al., 2022). That's a bigger effect than most lifestyle interventions. The Japanese concept of ikigai—a life worth living—shows similar power: in a study of 832 community-dwelling Japanese adults, ikigai was associated with a 76% lower risk of developing frailty over 5 years among older women (Son et al., 2025). And in the Japan Collaborative Cohort Study, which followed 30,155 men and 43,117 women aged 40–79 for about 12.5 years, having ikigai was linked to lower all-cause mortality (hazard ratio 0.85 for men and 0.93 for women) (Tanno et al., 2009).

Relationships also predict longevity. The Harvard Study of Adult Development, which began in 1938 and followed 724 men for over 80 years, found that satisfaction with relationships at age 50 was a better predictor of physical health than cholesterol levels (Harvard Study of Adult Development). And the US Surgeon General's 2023 advisory reported that lacking social connection raises the risk of premature death by more than 60%—comparable to smoking up to 15 cigarettes a day (US Surgeon General's Advisory on Loneliness, 2023). That's enormous. But here's the thing: purpose often fuels relationships. When you have a reason to get up, you engage with people more. So purpose has a multiplier effect.

Meaningful work? Gallup's 2024 State of the Global Workplace report found that being actively disengaged at work is equivalent to or worse than being unemployed for wellbeing (Meaningful work and wellbeing). That's a strong signal that work matters—but only if it's meaningful. The problem is that meaningful work is harder to come by and easier to lose than a personal sense of purpose. You can be fired, retired, or burned out. Purpose is portable.

Daily experience: relationships and flow beat purpose alone

Purpose is great for longevity, but what about day-to-day happiness? Here relationships and engagement (a component of purpose) shine. The Harvard study's most consistent finding is that warm relationships keep people happier and healthier, and are better predictors of long and happy lives than social class, IQ, or even genes (Harvard Study of Adult Development). That's about daily life, not just length of life. And Robert Waldinger, the study's current director, puts it simply: “Taking care of your body is important, but tending to your relationships is a form of self-care too.”

But purpose also delivers daily goods—through flow. Mihaly Csikszentmihalyi defined flow as being so completely absorbed in an activity that nothing else matters, and it arises when challenge matches skill (Flow: the psychology of optimal experience). When you're pursuing a purpose, you're more likely to find flow. That's a daily win. Meaningful work can also provide flow, but only if the work is engaging. Gallup found that managers account for 70% of the variance in team engagement (Meaningful work and wellbeing)—so your daily experience at work depends heavily on your boss. That's a risk.

So for daily experience, relationships and purpose are close. I'd give relationships a slight edge for pure moment-to-moment happiness, but purpose wins for sustained satisfaction because it gives you a reason to seek out relationships and activities.

Feasibility: purpose is the most accessible

Can you just decide to have purpose? Not exactly, but you can cultivate it more easily than you can change your relationship status or find a new job. Purpose can be built through small practices. Gratitude, for instance, can be intentionally cultivated—by writing down or discussing what you're grateful for a few times a week (Gratitude and longevity, Harvard Health, 2024). And a 2024 randomized experiment found that extending sleep by an average of 46 minutes per night significantly improved measures of flourishing, resilience, and gratitude (Sleep extension and wellbeing, Do, Schnitker & Scullin, 2024). So purpose isn't just a mindset; it's supported by basic habits.

Relationships require other people, which makes them less controllable. If you're lonely, you can't just snap your fingers and have a community. The US Surgeon General's advisory estimated that social isolation among older adults drives roughly $6.7 billion in excess annual Medicare spending (US Surgeon General's Advisory on Loneliness, 2023)—a sign of how hard it is to fix. Meaningful work is even less feasible: it depends on the job market, your manager, and organizational culture. Gallup's report found that overall employee wellbeing declined globally in 2023 (Meaningful work and wellbeing). You can't easily change that.

Purpose, by contrast, is internal. You can start today by volunteering—a 2020 Harvard T.H. Chan study of nearly 13,000 Americans aged 50 and older found that volunteering 100 or more hours a year (about 2 hours a week) was associated with a 44% lower risk of dying over a 4-year follow-up (Volunteering and longevity). That's a concrete, feasible action.

Head-to-head comparison

Quick tip: Don't wait for purpose to strike. Start with a two-hour weekly volunteer commitment—it's the most evidence-backed way to build purpose and add years to your life.

Who each is for—and my pick

If you're lonely and disconnected, relationships should be your priority. The Harvard study is clear that warm relationships are the strongest predictor of happiness. Join a club, reconnect with old friends, or volunteer—volunteering kills two birds by building both purpose and relationships. If you're stuck in a job that drains you, meaningful work might be your focus, but be realistic: Gallup's finding that managers drive 70% of engagement variance means your boss matters more than your job title. If you can't change your boss, change your job.

But for most people, I recommend starting with purpose. Why? Because purpose improves both longevity and daily experience, and it's the most feasible to cultivate. It also amplifies the other two: when you have a purpose, you seek out relationships and you find work more meaningful. The research on ikigai, purpose, and volunteering all points the same way. And purpose can be built through small, daily practices—gratitude journaling, sleep extension, or a two-hour weekly volunteer shift.

My specific recommendation: define a one-sentence purpose for this season of your life, then take one small action toward it today. That could be signing up to volunteer, writing a gratitude list, or reaching out to a friend. The data says it's worth it.

Sources

• Baumann & Ruch (Frontiers in Psychology) - https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2022.982782/full
• Shiba et al., 2022 - https://pubmed.ncbi.nlm.nih.gov/36283485/
• Son et al., 2025 - https://pubmed.ncbi.nlm.nih.gov/39913953/
• Harvard Study of Adult Development - https://news.harvard.edu/gazette/story/2017/04/over-nearly-80-years-harvard-study-has-been-showing-how-to-live-a-healthy-and-happy-life/
• US Surgeon General's Advisory on Loneliness (HHS, 2023) - https://pubmed.ncbi.nlm.nih.gov/37792968/
• Volunteering and longevity (Harvard T.H. Chan study, 2020) - https://alert.psychnews.org/2020/06/volunteering-may-boost-longevity-mental.html