Dr. John Duffy

06/17/2026

Some thoughts on Father’s Day, and why dads deserve out attention and celebration, especially these past few years. Today’s Substack.

I received a call yesterday from, a radio producer asking me to come on the air and talk about Father’s Day.

06/15/2026

So excited to be running this years Chicago marathon with George and about 50,000 of our closest friends. We are running in support of Team Nourishing Hope. Thought I’d share a little about their mission here, and ours. And if you’re able, how you can support them. Thank you!

This past week, George and I began training for this year’s Chicago Marathon.

06/10/2026

I find that I often need to be faced with some crisis to feel gratitude for the everyday. I would love to carry it as a default. Some thoughts on how to get there without some near-death experience. Today’s Substack.

So last weekend, Julie and I were driving home to Chicago from Iowa, a birthday visit to her mom.

06/03/2026

With a dearth of available employment coupled with the looming threats posed by AI, more and more kids are telling me meaningful work is highly unlikely for them. Some thoughts on why that matters, quite a lot in fact, and how we might move the needle. Today’s Substack.

In November of every year, I attend a mini-reunion of seven of my very best friends from college.

05/27/2026

You may have read lately that teens and young adults are heading back to church in surprisingly high numbers. Let’s talk through this topic and determine what it might mean for your child and your family. Today’s Substack.

Over the past couple of months, you may have read some research suggesting that, quite suddenly over the past couple of years, more teenagers and young adults of all denominations are heading back to church after a decades-long, pretty precipitous decline.

05/20/2026

I have been reminded by a number of young people returning home from college these past few weeks that they can be emotionally pliable, and free of many of the cultural and technological stressors before them, their natural inclination is quite healthy. Some thoughts on how we can usher them back. Today’s Substack. Link in bio.

05/20/2026

I have been reminded by a number of young people returning home from college these past few weeks that they can be emotionally pliable, and free of many of the cultural and technological stressors before them, their natural inclination is quite healthy. Some thoughts on how we can usher them back. Today’s Substack.

I often feel like the grim reaper when discussing the emotional well-being, or lack thereof, of our teenagers and young adults:

05/18/2026

Last week’s segment from the Morning Blend on determining whether your relationship is right for you.

When it comes to relationships, one of the most common and complicated questions people ask is how they can determine if the right for them.

05/13/2026

Teenagers and young adults support each other in invisible but very important ways you may not be aware of. Today’s Substack. Link in bio.

05/13/2026

Teenagers and young adults support each other in invisible but very important ways you may not be aware of. Today’s Substack.

I was talking recently with Timothy, a brilliant, insightful, 28-year-old musician and entrepreneur.