CNLP 552: Marc Schulz on the Secret to Happiness, Lessons from the Longest Longitudinal Study in the World (The Harvard Study) and Why It’s Never Too Late to Grow Happier

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Marc Schulz shares key findings on the secret to happiness from the longest longitudinal study in the world (the Study of Adult Development at Harvard Medical School), which has profiled thousands of people over 84 years, why success and career don’t fulfill people, why deep relationships do, and why it’s never too late to grow happier and how to do it.

Welcome to Episode 552 of the podcast. Listen and access the show notes below or search for the Carey Nieuwhof Leadership Podcast on Apple Podcasts or wherever you get your podcasts and listen for free.

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Today’s podcast is all about creating more meaningful lives through our connections to others. What if we carried this mindset into our workplace as well?

My friends at Leadr believe that employee engagement is driven by each person’s relationship with their manager and whether or not they are being consistently cared for and developed.

They’ve created the first-ever People Development Software to help you implement healthy leadership habits from 1:1 meetings, to two-way feedback, to goal-setting and more for a more engaged and healthy team.

Because people want to be led and developed. Not managed.

Check out for how you can better engage and grow your team today! And mention promo code Carey for 20% of your first year.


Are you leaving money on the table? If you’re only accepting cash donations at your church, this could be the case.

Did you know that 90% of wealth is actually in NON-cash assets? When cash is the only giving option, you’re putting a lid on generosity.

Overflow is here to lift that lid, and unlock more ways to give. Overflow is an online software that empowers donors to easily give non-cash assets (such as stock) to churches in minutes, not months.

Why is this important? Well, the average cash donation in the U.S. is just $128, but the average stock donation through Overflow is over $10,000.

The days of giving the church the ‘leftovers’ are behind us. It’s time to empower your donors to give from their “overflow.”

Let’s unlock more giving channels for the Kingdom together. Go to to learn how.

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The Good Life: Lessons from the World’s Longest Scientific Study of Happiness By Marc Schulz and Robert Waldinger M.D.

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The Study of Adult Development at Harvard Medical school

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Quotes from Episode 552

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Spread the Word. Leave a Rating and Review.

Hopefully, this episode has helped you identify or break a growth barrier. That’s my goal. If you appreciated it, could you share the love?

The best way to do that is to rate the podcast on Apple Podcasts and leave us a brief review! You can do the same on Stitcher and on TuneIn as well.

Your ratings and reviews help us place the podcast in front of new leaders and listeners. Your feedback also lets me know how I can better serve you.

Thank you for being so awesome.

Next Episode: Craig Groeschel

Craig Groeschel, Pastor of Life.Church and NYT bestselling author breaks down what being undisciplined as a young leader costs him, the process of becoming a disciplined leader, the current habits he’s mastered, including how to improve your sleep, and the three habits every leader should focus on.

Subscribe for free now so you won’t miss Episode 553.

Increase Giving and Fully Fund Your Mission—Regardless of Where You're at Now.

When it comes to money conversations with your church, my guess is that you want the outcome (margin in your budget and a generous congregation) without the process (having to raise funds and talk about it).

The Art of Building a Generous Congregation is a proven method for increasing giving, creating a culture of generosity, and building financial margin at your church... without the stress and awkwardness.

Even if you don’t feel comfortable talking about money right now.
Even if you’ve never seen your congregation fully engage with that kind of conversation.
Even if you’ve tried other methods without success.

And yes, especially, if you could make a bigger difference by increasing your budget by 20%, 30%, or even 40%.

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Carey Nieuwhof
Carey Nieuwhof

Carey Nieuwhof is a best-selling leadership author, speaker, podcaster, former attorney, and church planter. He hosts one of today’s most influential leadership podcasts, and his online content is accessed by leaders over 1.5 million times a month. He speaks to leaders around the world about leadership, change, and personal growth.