Dr. Dean Sherzai

speaker

485 appearances 1 recordings 1 series first heard Apr 2026 last heard 9 Apr

Dr. Dean Sherzai’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Apr 2026 with 1.

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What does that tell you?

Idea density.

That means they challenged their brain.

They learned more.

They pushed themselves to study more, to learn more, to have more vocabulary.

Idea density is a lovely, lovely concept.

I said, I'm a terrible guitarist, but if I ever have a band, I'm going to call it idea density, which is going to be even worse.

But nonetheless, it's an incredible concept.

The group that succumbed in spite of normal had much less sophisticated vocabulary, had challenged their brain much less.

But reality is, the more complex, the better.

We did a meta-analysis.

We write papers.

We did a meta-analysis a couple of years ago, looking at everybody else's papers who gave it to us, and we've looked at the bigger data.

And we saw that three things matter.

Complexity, purpose, and challenge.

What does that mean?

Activities that have a purpose for you.

and have complexity, meaning multi-domains, and you're pushing yourself, are by far the best.

Does that mean we could be doing a puzzle as a family?

Those are great, but learning a musical instrument.

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