You're listening to Bulletproof Radio with Dave Asprey.

Today's cool fact of the day is that if you have a good sense of smell, you probably

have a good sense of direction too.

In a new neuroscience study, 57 young people were asked to navigate through a virtual

town on a computer before being tested on how well they could get from one spot to another,

and they analyzed how well they could smell.

And after a sniff of 40 odor-infused felt-tip pens, the participants were shown four words

on a screen and asked to choose the one that matched the smell.

And on these totally unrelated tasks, the people who smelled better, navigated better,

which is not what you'd expect.

And that's what the researchers at McGill University in Montreal found.

They hypothesized that this is because the left orbital frontal cortex and the right

hippocampus were both bigger in the better smellers and better navigators.

And we know that part of the brain is tied to smelling.

Hippocampus is known to be involved in both smelling and navigation.

What you can do about this, to hack yourself, I actually have no idea, but it's really

cool that every day we're figuring out parts of the brain do things that we had no idea

they were doing before.

And what this means for you is that you might want to do whatever you can to keep all

parts of your brain running really, really well.

And that comes down to not eating toxic stuff, making your mitochondria work better, and

having the right kinds of fat to build your brain structures.

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