Dr. Paddy Barrett

So there are multiple types of dementia.

Alzheimer's and vascular dementia are the two big types.

But there are other types of dementia, frontotemporal dementia, Lewy body dementia.

People will kind of know Robin Williams, for example, had that kind of that unusual subtype.

But broadly, what people are talking about is either the buildup of an amyloid plaque or mini strokes and often the combination of both.

My answer always is today.

But this actually has been studied very recently.

And they looked at levels of fitness throughout life in terms of early in life, midlife and later life.

And they looked at the likelihood of that having a protective benefit on dementia.

And so a lot of people will be fit and healthy early in life, and that declines through midlife and later life.

And they looked at that, and being fit early in life and not maintaining it, you really conferred little to no benefit.

The real benefit...

We won't go as far as that.

Correct.

And my line around this is fitness is a very cruel mistress.

It is very hardly won and very quickly lost.

And the benefits that you garner from it are really only maintained if you maintain levels of fitness throughout mid and later life.

And that's what the evidence would strongly suggest.

It's never too late.

And you can always garner benefit.