Dr. Rangan Chatterjee

I thought this feels like a different Jenna to the Jenna who came into my studio back in 2020.

And then as I started reading and listening to some of your other more recent interviews, I thought, wow, you've been through some quite significant life changes since I last saw you, which I think is beautifully reflected in your writing.

Let's talk about that as much as you're open to share as to what has changed in you since our first conversation.

But also it makes me think of like almost the middle part of the book where you talk about midlife and midlife being this really important, I guess, stage in our life where you actually say, don't you, beyond the age of 40, there's a meaningful change in your biology at 40 as well as perhaps your psychology.

So can we sort of go, I was going to go into this a bit later, but I think now seems like the right time to go in there.

Yeah, thank you for sharing that.

It definitely helps me understand how and why the tone of this book, I would say, is quite different from your first two.

And it's certainly where I'm at in my life.

So I very much resonate with this.

As I said to you when you walked into my house this morning, there's less of the what.

There is plenty of what in this book in terms of what can you do to help improve your immune system health.

But there's a lot of the why, I mean, why should you care?

Why should you do these things?

In a limited time budget, why should you spend your time actually doing these things?

And as you eloquently put in the introduction,

The conversation around longevity is both science and philosophy.

You can't just look at it through the lens of science or, you know, this is how you should eat, this is how you should move, you know, this is how many hours sleep you should get.

Okay, great, helpful.

And if you don't have the bigger why, if you're not living in alignment of figuring out why should you do those things, purely on a behavior change aspect,

I think this is one of the main reasons why people can't make habits stick in the long term.