Dr. Rangan Chatterjee

But I've actually, two weeks ago, was on a four-day meditation retreat.

I've never meditated in a group before.

I didn't know I could meditate for that long.

I was a bit nervous before I went.

Can I meditate kind of most of the day?

It's one of the best things I've done.

And I really thought, I really experienced, oh,

there's a benefit in meditating in the same room as 10 other people who are also doing it.

So how much do you think,

I guess you've already answered it, but what do you think community and doing things with other people, what's the impact that that can have on our immune system, would you say?

Yeah.

Makes me think now back to the case study I shared with you about the lady with the crones, how much of that improvement also came from her doing a salsa dancing class in a group.

This one I probably hadn't thought about as much.

But I did think about when you mentioned jiu-jitsu, because I did think there's a lot of close contact, right?

And there's a chat called Professor Francis McGlone from the University of Liverpool.

I've known Francis for years.

He's brilliant.

In fact, I think it's time to get him back on the show.

He came on maybe episode 30, maybe like in the first year.

But he was basically talking about...