John Hamilton

I mean, maybe not forever, but there is some cool new science here.

Let me tell you about a study that provides the first really compelling evidence that cognitive training can cause biological changes in the brain.

Exactly.

You've probably seen some of those brain training products on the Internet.

You've got, you know, there's Lumosity, Elevate, Peak, Cognifit.

And then there's the one that probably has the most science behind it.

That is Brain HQ.

They designed that training exercise that was making your head explode just a few minutes ago.

Until now, the evidence that those products actually work has been mostly from studies of cognitive performance.

So, you know, maybe somebody was able to process information more quickly, focus for a longer period of time.

This new study found changes in levels of a really important molecule in the brain.

It's something called acetylcholine.

And now you have.

Acetylcholine is both a neurotransmitter and a neuromodulator.

So what it does is it carries messages around the brain, but it also affects the behavior of neurons.

It neuromodulates.

Unfortunately, as we get older, the levels of acetylcholine in the brain start to go down.

And if you get Alzheimer's, they go way down.

I talked about all that with a scientist at McGill University in Montreal.

His name is Etienne de Villers-Sédanier, and here's what he said.