Laugh Lines with Kim & Penn Holderness

What do collagen powders, weighted vests, parasite cleanses, and protein bars all have in common? (According to our favorite no-nonsense doctor, probably a lot less science than TikTok would like you to believe.) This week on Laugh Lines, we’re welcoming back the wonderfully persnickety Dr. Eric Topol to help us debunk the health trends that keep popping up in our feeds (and in our shopping carts.)

After our last conversation, we were flooded with listener emails, voicemails, and questions, so this time he is answering all YOUR questions! We cover big topics like brain health, Alzheimer’s prevention, and new blood tests like the “brain clock.” (We also cover cortisol panic, brain booster supplements, and over the top health challenges.)

If you are overwhelmed by health advice, tired of feeling like you are doing everything wrong, or just want to laugh while learning what actually matters, this episode will leave you feeling smarter, calmer, and far less tempted to buy supplements while doomscrolling. We love to hear from you! Leave us a message at 323-364-3929 or write the show at [email protected]. You can also watch our podcast on YouTube.

You can learn more about Dr. Eric Topol here: https://drerictopol.com/

Visit Our Shop
Join Our Newsletter
Find us on Substack
Follow us on Instagram
Follow us on TikTok
Follow us on Facebook

Laugh Lines with Kim & Penn Holderness is an evolution of The Holderness Family Podcast, which began in 2018. Kim and Penn Holderness are award-winning online content creators known for their original music, song parodies, comedy sketches, and weekly podcasts. Their videos have resulted in over three billion views and over nine million followers since 2013. Penn and Kim are also authors of the New York Times Bestselling Books, ADHD Is Awesome: A Guide To (Mostly) Thriving With ADHD and All You Can Be With ADHD. They were also winners on The Amazing Race (Season 33) on CBS.

Laugh Lines is hosted and executive produced by Kim Holderness and Penn Holderness, with original music by Penn Holderness. Laugh Lines is also written and produced by Ann Marie Taepke, and edited and produced by Sam Allen. It is hosted by Acast. Thanks for listening!
Hosted on Acast. See acast.com/privacy for more information.

Happy 2026, we're back! It’s a new year, but instead of "new year, new me" I am going with "new year, slightly improved me." Mostly because I stopped caring... well, that's not true (but more on that in the podcast.) In this episode of Laugh Lines, we’re easing back into the groove of things with medium energy, big feelings, and some good laughs. We talk about the emotional whiplash of having a college kid home and then watching them leave again, the surprisingly effective wake-up call of a dog throwing up before sunrise, and the bravery of brown-bagging a Diet Coke. (Still not sponsored... yet.)

Clearly, we haven't done this in a while because we jumped all around. From Penn complimenting your husbands to talking about starting a space podcast to discussing how you want us to show up when we feel like the world isn't normal... this show has it all. (Really hoping for your feedback on that last one.) Shout out to Gerald for his amazing spreadsheet, and YOU for sticking with us all these years. We started this podcast in 2018... how crazy is that? (Prepare for a music treat in the show.) Welcome to 2026. We’re not reinventing ourselves, we’re just trying to be a little better and a lot more honest.

We love to hear from you! Leave us a message at 323-364-3929 or write the show at [email protected]. You can also watch our podcast on YouTube.

Visit Our Shop
Join Our Newsletter
Find us on Substack
Follow us on Instagram
Follow us on TikTok
Follow us on Facebook

Laugh Lines with Kim & Penn Holderness is an evolution of The Holderness Family Podcast, which began in 2018. Kim and Penn Holderness are award-winning online content creators known for their original music, song parodies, comedy sketches, and weekly podcasts. Their videos have resulted in over three billion views and over nine million followers since 2013. Penn and Kim are also authors of the New York Times Bestselling Books, ADHD Is Awesome: A Guide To (Mostly) Thriving With ADHD and All You Can Be With ADHD. They were also winners on The Amazing Race (Season 33) on CBS.

Laugh Lines is hosted and executive produced by Kim Holderness and Penn Holderness, with original music by Penn Holderness. Laugh Lines is also written and produced by Ann Marie Taepke, and edited and produced by Sam Allen. It is hosted by Acast. Thanks for listening!
Hosted on Acast. See acast.com/privacy for more information.

If you ever rode rear-facing in a station wagon or took a “fart walk” to survive the holidays… welcome home. This week, we’re wrapping up 2025 by revisiting the moments that made us laugh hardest, cry a little, and feel deeply connected to you this past year. (Thank you for your voicemails and emails into the show. Our listeners are the heart of Laugh Lines and we cannot wait to keep it going in 2026!)

This episode is a love letter to the Laugh Lines community. We’re checking back in with some of our favorite callers and guests, including a 10-year-old inventor who reminds us why ADHD brains are magic, why using Gen Z lingo can be helpful, and the very serious debate of Diet Coke vs. Diet Pepsi. Plus, Penn shares his official “nuggets” from the year (aliens may or may not be involved) and Sam & Ann Marie pop in to close the show. Thanks for being here, thanks for listening so closely, and don’t worry we will be back in January. Until then, be kind, take the walk, and drink the Diet Coke (or Pepsi, if you must.) We hope you keep laughing with us next year!

We love to hear from you (and tell us what you want in 2026!) leave us a message at 323-364-3929 or write the show at [email protected]. You can also watch our podcast on YouTube.

Visit Our Shop
Join Our Newsletter
Find us on Substack
Follow us on Instagram
Follow us on TikTok
Follow us on Facebook

Laugh Lines with Kim & Penn Holderness is an evolution of The Holderness Family Podcast, which began in 2018. Kim and Penn Holderness are award-winning online content creators known for their original music, song parodies, comedy sketches, and weekly podcasts. Their videos have resulted in over two billion views and over nine million followers since 2013. Penn and Kim are also authors of the New York Times Bestselling Books, ADHD Is Awesome: A Guide To (Mostly) Thriving With ADHD and All You Can Be With ADHD. They were also winners on The Amazing Race (Season 33) on CBS.

Laugh Lines is hosted and executive produced by Kim Holderness and Penn Holderness, with original music by Penn Holderness. Laugh Lines is also written and produced by Ann Marie Taepke, and edited and produced by Sam Allen. It is hosted by Acast. Thanks for listening!
Hosted on Acast. See acast.com/privacy for more information.

When our daughter went off to college, I expected that she would change and she has. In a completely amazing, independent way. What I didn't expect is that we would change too. Now, she's home for holiday break and we're both navigating this changing relationship with no roadmap. (Time to call in an expert for some advice!)

This week on Laugh Lines, Penn and I are joined by one of our favorite humans and parenting expert, Dr. Lisa Damour. She helps us navigate this weird, wonderful in-between that happens when your college kid comes home. We cover everything from crossed wires and unspoken expectations to late wake-ups, missed dinners, and the moment you realize you’re not parenting a kid anymore — you’re kind of living with a roommate.

We also talk about why college kids basically hibernate when they come home, how to know when something is actually wrong, and how to celebrate the amazing new person your child is becoming — even when it feels unfamiliar. Plus, Penn goes full science nerd... again. (Don't say I didn't warn you!) We love to hear from you (and tell us what you want in 2026!) leave us a message at 323-364-3929 or write the show at [email protected]. You can also watch our podcast on YouTube.

Learn more about Dr. Lisa Damour and her work!

Visit Our Shop
Join Our Newsletter
Find us on Substack
Follow us on Instagram
Follow us on TikTok
Follow us on Facebook

Laugh Lines with Kim & Penn Holderness is an evolution of The Holderness Family Podcast, which began in 2018. Kim and Penn Holderness are award-winning online content creators known for their original music, song parodies, comedy sketches, and weekly podcasts. Their videos have resulted in over two billion views and over nine million followers since 2013. Penn and Kim are also authors of the New York Times Bestselling Books, ADHD Is Awesome: A Guide To (Mostly) Thriving With ADHD and All You Can Be With ADHD. They were also winners on The Amazing Race (Season 33) on CBS.

Laugh Lines is hosted and executive produced by Kim Holderness and Penn Holderness, with original music by Penn Holderness. Laugh Lines is also written and produced by Ann Marie Taepke, and edited and produced by Sam Allen. It is hosted by Acast. Thanks for listening!
Hosted on Acast. See acast.com/privacy for more information.

If you’re here for a perfectly curated tablescape, a stunning holiday gift guide, or expert tips on how to make your mantle look like the cover of a magazine… sweet friend, this is not that podcast. Welcome to the season of doing less, and honestly? It feels amazing.

This week, I’m declaring a personal holiday revolution: I am officially going medium. No more crying on Christmas Eve because I tried to hand-bake, hand-tie, hand-craft, and hand-everything my way into the “perfect” holiday. Penn and I talk about the art of letting go, the magic of setting boundaries without apologizing, and why aluminum foil might be the world’s most underrated wrapping paper.

We also hear from you on Laugh Line including an unwanted-gift exchange that absolutely needs to be a nationwide movement and the emotional fallout of Presidential Physical Fitness Test. (Sidenote: "I lied or actively cheated" may be our most favorite line of the year.) Finally, we talk about holiday traditions of yesteryear and what we would bring back. This year, the cookies might be store-bought, the tree might be fake, the gifts might be wrapped at a solid C+, but the joy? The joy is staying.

We love to hear from you (and tell us what you want in 2026!) leave us a message at 323-364-3929 or write the show at [email protected]. You can also watch our podcast on YouTube.

Visit Our Shop
Join Our Newsletter
Find us on Substack
Follow us on Instagram
Follow us on TikTok
Follow us on Facebook

Laugh Lines with Kim & Penn Holderness is an evolution of The Holderness Family Podcast, which began in 2018. Kim and Penn Holderness are award-winning online content creators known for their original music, song parodies, comedy sketches, and weekly podcasts. Their videos have resulted in over two billion views and over nine million followers since 2013. Penn and Kim are also authors of the New York Times Bestselling Books, ADHD Is Awesome: A Guide To (Mostly) Thriving With ADHD and All You Can Be With ADHD. They were also winners on The Amazing Race (Season 33) on CBS.

Laugh Lines is hosted and executive produced by Kim Holderness and Penn Holderness, with original music by Penn Holderness. Laugh Lines is also written and produced by Ann Marie Taepke, and edited and produced by Sam Allen. It is hosted by Acast. Thanks for listening!
Hosted on Acast. See acast.com/privacy for more information.