Hello, you're about to listen to a BBC podcast, and I'm Ed Gamble, host of another BBC podcast,

The Traitors Uncloaked. But my show is available only on BBC Sounds, just like Ellis and John's

Saturday bonus episodes, the Pop Top Ten podcast with Scott Mills and Ryland, and comedy specials

from the likes of Harriet Kemsley, Susie Ruffel and Rommas Shranger Nathan. However, and maybe I'm biased, it's really all about the traitors uncloked.

So for a whole bunch of exclusive scoops and podcasts, listen only on BBC Sounds.

Hello and thank you for downloading this programme, which was first broadcast on the 19th of July 2016.

Coming up today, miscarriage.

I meet one of the driving forces behind the move

to improve the accuracy of ultrasound scans in early pregnancy.

They may be accurate now, but that wasn't always the case.

Cardiac arrest whilst playing sport,

we debate the evidence behind screening for hidden heart

problems that can have catastrophic consequences. This strikes people in their 20s and their teens,

and these guys lose several decades of life. Once you have found something that can potentially

kill a young individual, and I use the word

potentially, as opposed to certainly, then as a physician, I do have an obligation to pose some

of the risks that may be associated with ongoing athletic activity.

And we continue our happy accident series looking at the impact of serendipity on modern medicine.

This week it's the story of warfarin.

But first, papill adema, a condition most of you had probably never heard of until last week

when an optometrist hit the headlines after being found guilty of manslaughter

because she missed

...