Mike Carruthers

Yes, that's an excellent question, Mike.

So in the cases where cognitive decline is because of environmental factors or lifestyle factors, then you would assume you could do something to prevent that.

You're absolutely right.

And so are those things, those five things, that help prevent your brain from shrinking?

Do they also treat your brain once you've shrunk your brain or is this all preventative stuff you have to do in advance?

What about drinking?

We've heard that drinking kills brain cells, which conceivably would mean that it's bad for your memory and bad for your cognitive process.

Is that true?

So really leading a healthy life, what we've come to know as a healthy life, eat right, sleep right, reduce stress, that kind of thing is very good for your brain.

Yes, absolutely.

So it isn't magic.

In some ways, it's just common sense to be good to yourself and do what you know is right rather than what you know is not right.

But I guess there is a tendency to maybe, well, I'll worry about this later when I'm old.

I don't need to worry about this now.

But I imagine the sooner you start, the better.

So you had mentioned a few moments ago about how you could do things like slow breathing.

But like how much?

Like you have to do it every day for 20 years?

Or if you do it for a week, you'll notice a difference?

Or like, give me a sense of that.