Hello, I'm Greg Jenna and good news, Your Dead to Me is back for a new series. Here we go. Yes, we'll explore Emperor Nero's notorious reign with Professor Marybeard and Patton Oswald. I would not want my daughter having the remote control, not alone an empire. We'll dissect the decadent life of Philippe Duke-Dor-Leon with Tom Allen. I've often tried to pretend I'm an aristocrat and being very quickly knocked down. And there'll be so much more with comedians like Olga Koch, Mike Mosniak and Rihalina. I'm excited. You're dead to me. The comedy podcast that takes history seriously. Listen first on BBC Sounds. Hello, thank you for listening to this edition of Inside Health. I hope you enjoy it. Coming up today, daily targets Margaret McCartney looks at the evidence behind and the impact of goals like 10,000 steps, eight glasses of water or 10 portions of fruit and veg a day.

Thyroid cancer. The number of new cases diagnosed in the UK has tripled over the last 40 years,

but are we picking up more slow-growing tumours that may never have bothered people,

had they not been spotted on a scan done for something else?

We know that some of these cancers can be left alone,

but we are not in a position today to say which of these cancers can be left alone,

which will have to be removed.

Is overdiagnosis such a terrible thing?

If we know we've got a cancer we want to dealt with.

More on that debate later.

But first, smoking in pregnancy, a news that Public Health England wants midwives to routinely screen pregnant women

by measuring carbon monoxide on their breath. The gas is a marker of whether they smoke or not,

and the move is backed by both Nice and the Royal College of Midwives. One in ten pregnant women is

still smoking at their first antinatal appointment,

but there's tremendous regional variation across the country.

Linda Bald is Professor of Health Policy at the University of Sterling School of Health Sciences.

Linda, what sort of impact is this having?

Well, it's very significant.

Some work we did with the Royal College of Physicians a few years ago to pull together all the evidence

suggests that smoking and pregnancy causes around 2,000 premature births, 5,000 miscarriages,

and unfortunately 300 perinatal deaths each year in the UK, so the baby dying prematurely.

And we also know that it can contribute to poor health for the baby after it's born. And of course,

...