January 20, 2026

Debunking Health Trends with Dr. Eric Topol

1 hour 4 minutes

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/

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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.

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