Get up in the morning, sleeping for a rest.

So that every mouth can be fed.

Call me, interalizer.

Welcome to More or Less on the BBC World Service,

the program that eats, breeds and sleeps statistics.

I'm Robert Cough, and this month,

something will take an hour of my precious sleep.

But what would do that?

It's daylight saving time.

Daylight saving time moves clocks forward an hour in spring

or back in the autumn to increase the amount of daylight

people experience while out in the bow.

In countries across the world that run it,

the clock springs for this month,

leading to misdepoints, mumble excuses,

and apparently more heart attacks.

One US study found a 24% rise in heart attacks

on the Monday after the clock change.

But loyal listener, Adrian Brasnott wasn't so sure about this.

On the face of it, this rather alarming figure

sounds very implausible.

Data sources vary, though in the UK,

...