This is The Guardian.

Have you ever been in a dilapidated castle, Old Manor House or Victorian Terrace, and thought something feels off?

In fact, not just off, but downright spooky.

Well, now scientists think they might have figured out why these spaces give us the heibi-ge-be-jee-bees. And spoiler, it's far more mundane than ancient spirits returning to haunt the

living. Still, if that was something you encountered, you'd be forgiven for running a mile in the

opposite direction as fast as you could. And this weekend, humans proved once again they can run

really far, really fast.

Not one, but two runners broke the two-hour barrier at the London Marathon.

How did they manage it?

And fitness, or the lack of it, was something the UK had to take stock of this week,

as a report found the years we spend in good health are falling.

But why is the UK becoming sicker when so many nations are going the other way?

Today I chat to science editor Ian Sampal about the

stories you need to know. From The Guardian, I'm Madeline Finley and this is Science Weekly.

Ian, we're starting today with a report that suggests that healthy life expectancy of a baby born now in England, Scotland or Wales has declined by around two years since 2012.

So what exactly does healthy life expectancy mean? And how is that measured? So this is an analysis by

a think tank called the Health Foundation. And what they've done is draw on UK data from the

Office for National Statistics. And they've also got similar data from other countries.

So healthy life expectancy is pretty much what it says on the can.

It's how long am I expected to live without any sort of ongoing health problems? So how long is

my healthy life, sometimes called health span as well? And the way they get this information is it's

essentially self-reported. So people say, yes, I'm in very good health, good, fair, bad, very bad.

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