That One Thing

I’m beyond excited to introduce my next guest—someone I was fortunate to meet through the boxing community in New York. I already knew she was accomplished, badass, and inspiring, but this conversation left me wanting to level up in every area of my life. Honestly, these episodes just keep getting better.

Meet Sarah Cunningham: Director of Client Services at AKQA, dedicated boxer, kind soul, David Goggins fan, and blessed with an Irish accent. In this episode, Sarah shares her insights on recalibrating, redefining success, and creating a fulfilled, aligned life—all by focusing on becoming the best version of yourself.

She’s a true inspiration for women, and I’m grateful to call her a new friend.

You won’t want to miss this powerful episode! 🎙️

I’m beyond thrilled to introduce my next guest—someone I was lucky to connect with through my amazing network here in New York. I knew she was accomplished, but this episode left me fired up and ready to embrace the uncomfortable in pursuit of growth.

Meet Brit Smith: Editor-in-Chief at Men’s Journal, journalist, adventure enthusiast, fitness expert, and all-around inspiring human being. Brit leads all aspects of Men’s Journal’s website, crafting compelling stories about living boldly—from adventure and travel to fitness and gear. Along the way, she’s taken big risks, advocated for herself, and built a life that many of us dream about.

Brit’s passion for storytelling and her fearless drive to push boundaries are infectious. After our conversation, I was left with a renewed determination to stretch my own limits and take on new challenges.

You definitely don’t want to miss this powerful episode🎙️!

I’m honestly struggling to put into words just how impactful this episode was for me. I have the absolute privilege of introducing my next guests—two of my closest friends here in New York. Building deep, meaningful friendships as an adult isn’t always easy, but these two women are proof of just how transformative and enriching those connections can be.

These incredible women challenge me, inspire me, and make me better every single day. For this episode, we took a different direction, diving into what it means to redefine yourself in your 30s—after setbacks, disappointments, and unexpected turns.

We open up about vulnerability, the power of surrounding yourself with the right people, and how each of us has reshaped what success looks like in our lives. This conversation touched me on such a deep level, and I think it will do the same for you.

Don’t miss this heartfelt and powerful episode—you’re going to love it! 🎙️

Welcome to That One Thing podcast with Kayleen Duffy! This show is here to inspire, uplift, and maybe make you giggle. Today, I’m recapping my podcasting journey—a path inspired by Ed Mylett and fueled by the belief that you are shaped by what you consume and who you surround yourself with.

Almost a year ago, I recorded my first episode, surrounded by incredible friends who continue to inspire me. Since then, I’ve welcomed amazing guests who’ve challenged and motivated me to grow. This podcast has been a labor of love, and I’m so proud of what we’ve built together. Thanks for being part of it!

I’m beyond excited to introduce my next guest—someone I connected with through my amazing network here in New York! From the moment I was introduced to him, I knew he was someone special, but this episode left me even more inspired than I could have imagined.

Meet Dr. TJ Martino: a husband, father, business owner, Doctor of Physical Therapy, runner, and all-around incredible human being with a heart for helping others thrive.

Like many of my guests, I met Dr. TJ through this remarkable network. I was genuinely thrilled to have the chance to interview him because I’m deeply inspired by people who not only excel at multiple things but also manage to maintain a high level of excellence while still prioritizing their own well-being.

Dr. TJ’s drive, passion for his family, dedication to his career, and commitment to human health and longevity are nothing short of inspiring. Conversations like this remind you to aim higher, do better, and live with greater intention.

I’m thrilled to introduce my next guest—someone I connected with through my incredible network here in New York! I knew she was impressive, but this episode left me fired up. Meet Erin Bailey: founder, business owner, fitness model, runner, former run and fitness coach, content creator, and all-around amazing human being.

Like so many of my guests, I met Erin through this incredible network. From our first interaction, I was impressed by her expertise, but it’s her inspiring journey that truly stands out—a testament to betting on yourself and pursuing what matters most.

Erin’s passion for making an impact and leaving every space better than she found it is undeniable. She achieves this with grace, thanks to the strong, thoughtful community she continues to cultivate.

Catch a sneak peek of our inspiring conversation with this remarkable woman! The full episode drops tomorrow 🎙️!

This intro clip is short and sweet because there’s just too much goodness packed in here.

I’m so excited to introduce you to my next guest, Kwame Darko—someone who inspires and whose family has friends. Kwame is the epitome of kindness and success, seamlessly blending humility with an incredible drive to make the world better.

A former college soccer player, Kwame’s journey is as diverse as it is inspiring. He’s opened for Big Sean as a songwriter, climbed the ranks in brand partnerships at Gimlet during the podcast boom, and is now thriving as a wine entrepreneur. Above all, he’s a devoted husband, father, and a shining example of optimism and grace.

Kwame’s outlook on life is a powerful reminder to seize every opportunity with intention and optimism. He has this rare ability to inspire you to be your best self while encouraging you to take bold steps forward.

Check out this clip for a sneak peek into our uplifting conversation—you won’t want to miss it.

I’m so excited to introduce my next guest, someone very special to me personally! Dr. Lana has a profound impact on so many lives, and she’s now my own doctor, helping transform me from the inside out. Dr. Lana is a Naturopathic doctor, a certified acupuncturist, and just an all-around incredible human being with a passion for impacting others and a growth-focused mindset.

I’m so excited to introduce Jonathan Lee! He’s a dad, husband, runner, podcaster, gardener, chief compliance officer, and so much more. Like many of my guests, I met Jonathan through my amazing community of friends. He’s genuinely impressive, and, selfishly, this episode is exactly why I started this podcast. I walked away inspired to do more and stay focused on being my best self.

Jonathan and I bonded over the feeling of not quite fitting the mold. He’s someone who’s constantly pursuing growth across his many passions. We had an inspiring conversation about the reality that we only get one life, the power of consistency, and how it’s often the difference between good and great.

Check out this clip for a preview of our conversation with this incredible guy! The full episode drops tomorrow 🎙️!

I'm thrilled to introduce Garrett from Goldies! He's a former finance professional, entrepreneur, TikToker, and self-proclaimed Z-list celebrity. Like many of my guests, I met Garrett through my amazing community. What stands out about Garrett is his deep commitment to personal growth and community, along with his truly inspiring outlook on life.

We actually met for the first time while recording this episode, and I walked away feeling motivated and more connected to myself. Before we started, I mentioned to him that I still get nervous, and he shared some incredible advice: "If your heart and soul are aligned, you know you're going to succeed, so why be nervous?"

Check out this clip for a preview of our inspiring conversation with this awesome guy! Full episode drops tomorrow 🎙️!