Dr. Rangan Chatterjee

Since Jenna was last on my show back in 2020, she's been through some significant life changes, and that depth of experience is woven beautifully into her latest book, Immune to Age.

Now, you might think it's strange to focus on the immune system just as we're coming out of cold and flu season.

But that's the thing that most of us get wrong.

We think immunity is just about fighting infections.

In fact, as Jenna reveals, the immune system is a key player

in how we age, how much energy we have, and whether we develop chronic disease.

Jenna calls it our wellness system, and once you hear why, you won't think about your longevity in quite the same way.

Jenna gives one of the clearest breakdowns I've heard of how stress works in the body.

She explains the close links between chronic stress, immunity, and inflammation.

We talk about why midlife is such a critical turning point for your biology.

And we discuss what self-compassion, good oral hygiene, and even martial arts can do for our immune health.

What I love most about this conversation, though, is where else it takes us.

Jenna and I go way beyond the basics, talking about identity, alignment, and even pondering the meaning of life.

It's both practical and philosophical, scientific and surprising.

And I think you're going to find it incredibly powerful.

So settle in and let's get to know our body's all important wellness system a little better.

I wanted to start off by talking about our immune system, our misunderstood immune systems.

Many of us think that our immune systems are solely there to defend us against infections, but in your new book, you make the case that the immune system is one of the central systems within our bodies shaping how we age.

Why is this so misunderstood?

The immune system seems to be at the heart of so many of the things that people struggle with these days.