Start the Week - Medical controversies

Dr Joshua Mezrich is a leading transplant surgeon. He tells Andrew Marr how death and life are intimately connected in his field of expertise. And he explains the extraordinary breakthroughs that have emerged in transplant surgery, along with the ethical questions that arise when choosing who will be given the chance of a new beginning. Scientific research needs to be evidence-based. But it can too easily be based on underlying assumptions and biases. The science writer Angela Saini reports on the history - and recent revival - of race science, a field of study that sees race as a biological fact.

Caroline Criado Perez exposes the gender biases in medical and scientific research. She argues that women have often been excluded from the data which has had a huge impact on the efficacy of the pills prescribed, and the treatment offered.

The latest promise of better healthcare is personalised medicine, which aims to get the right dose to the right patient at the right time. But Richard Ashcroft, Professor of Biomedical Ethics, cautions that grouping patients by their genetic constitution may well create new forms of inequality.

Producer: Katy Hickman

More or Less: Behind the Stats - Heart deaths, Organised crime and Gender data gaps

Are deaths from heart disease on the rise?

This week the British Heart Foundation had us all stopping mid-biscuit with the news that the number of under 75s dying from cardiovascular disease is going up for the first time in half a century. It sounds like bad news ? but is it?

Does Huawei contribute ?1.7billion to the UK economy?

People were sceptical that the Chinese telecom company could contribute such a large amount to the UK economy. We take a deeper look at the number and discuss whether it is reasonable to include such a broad range of activities connected to the company to reach that figure.

Deaths from organised crime

The National Crime Agency (NCA) said this week that organised crime kills more people in the UK than terrorism, war and natural disasters combined. But what does the evidence say? The NCA also said that there are 181,000 offenders in the UK fueling serious and organised crime. That?s more than twice the strength of the British Army. We try to find out where those figures came from.

The absence of women?s lives in data

Do government and economic statistics capture the lives of women fairly? If not, does it matter? How could things be changed? Tim Harford speaks to Caroline Criado-Perez about her new book ?Invisible Women: Exposing Data Bias in a World Designed for Men.?

Image: Human heart attack, illustration Credit: Science Photo Library

Start the Week - Billy Bragg on anger and hope

Kerry Hudson grew up in all-encompassing and grinding poverty. She is now an acclaimed author, but tells Tom Sutcliffe why she returned home to explore the impact and trap of being lowborn.

Howard Brenton’s latest play is loosely inspired by Thomas Hardy’s Jude the Obscure and features a clever, ambitious young woman fighting for an opportunity, yet held back by her background.

Will Tanner, director of the think tank Onward, looks at what social mobility - or a lack of it - means in the political sphere. The age at which voters are more likely to vote Conservative than Labour has risen rapidly, and Tanner sees this as both a challenge and an opportunity for all the main parties.

The musician and activist Billy Bragg has written about the Three Dimensions of Freedom in which he argues that without equality and accountability, freedom is a mere shadow.

Producer: Katy Hickman

Start the Week - Billy Bragg on anger and hope

Kerry Hudson grew up in all-encompassing and grinding poverty. She is now an acclaimed author, but tells Tom Sutcliffe why she returned home to explore the impact and trap of being lowborn.

Howard Brenton’s latest play is loosely inspired by Thomas Hardy’s Jude the Obscure and features a clever, ambitious young woman fighting for an opportunity, yet held back by her background.

Will Tanner, director of the think tank Onward, looks at what social mobility - or a lack of it - means in the political sphere. The age at which voters are more likely to vote Conservative than Labour has risen rapidly, and Tanner sees this as both a challenge and an opportunity for all the main parties.

The musician and activist Billy Bragg has written about the Three Dimensions of Freedom in which he argues that without equality and accountability, freedom is a mere shadow.

Producer: Katy Hickman

More or Less: Behind the Stats - Sex, coal, missing people and mice

Sex Recession This week it was reported that British people are having less sex than they used to. Similar statistics are cropping up elsewhere in the world too. But one US stat seemed particularly stark: the number of young men having no sex at all in the past year has tripled in a decade. But is it true?

No coal power for a week There were many reports in the newspapers this week saying the UK has set a new record for the number of consecutive days generating energy without burning any coal. So where is our electricity coming from?

Missing people Some listeners got in touch to say they were surprised to hear that a person is reported missing in the UK every 90 seconds. Dr Karen Shalev Greene of the Centre for the Study of Missing Persons joins us to explore the numbers.

In Mice One scientist is correcting headlines on Twitter by adding one key two-word caveat ? the fact that the research cited has only been carried out "in mice". We ask him why he?s doing it.

More or Less: Behind the Stats - Avengers – Should we reverse the snap?

*Spoiler-free for Avengers: Endgame* At the end of Avengers: Infinity War film the villain, Thanos, snapped his fingers in the magical infinity gauntlet and disintegrated half of all life across the universe. The Avengers want to reverse the snap but would it better for mankind to live in a world with a population of less than 4 billion? Tim Harford investigates the economics of Thanos with anthropologist Professor Sharon DeWitte and fictionomics blogger Zachary Feinstein PHD.

Image: The Avengers Endgame film poster Credit: ?Marvel Studios 2019

Start the Week - Icons of English literature

Chaucer is renowned as the father of English literature. But in a new biography Marion Turner argues he is a far more cosmopolitan writer and thinker than we might assume. She tells Andrew Marr how the 14th-century author of The Canterbury Tales moved from the commercial wharves of London to the chapels of Florence, and from a spell as a prisoner of war in France to the role of diplomat in Milan.

The academic Emma Smith challenges audiences to look with fresh eyes at the plays of Shakespeare. In a series of essays she reveals how his plays have as much to say about PTSD, intersectionality and #MeToo as they do about Ovid, marriage and the divine right of kings.

When Charles Dickens started his writing career, his ambition was global: to speak to ‘every nation upon earth’. And he succeeded. His stories reached Russia, China, Australia, even Antarctica, and he was mobbed in the street when he visited America. Juliet John, co-curator of the exhibition Global Dickens, examines how Dickens’s work could travel so far, when the settings of his novels were much closer to home.

Producer: Katy Hickman

Start the Week - Icons of English literature

Chaucer is renowned as the father of English literature. But in a new biography Marion Turner argues he is a far more cosmopolitan writer and thinker than we might assume. She tells Andrew Marr how the 14th-century author of The Canterbury Tales moved from the commercial wharves of London to the chapels of Florence, and from a spell as a prisoner of war in France to the role of diplomat in Milan.

The academic Emma Smith challenges audiences to look with fresh eyes at the plays of Shakespeare. In a series of essays she reveals how his plays have as much to say about PTSD, intersectionality and #MeToo as they do about Ovid, marriage and the divine right of kings.

When Charles Dickens started his writing career, his ambition was global: to speak to ‘every nation upon earth’. And he succeeded. His stories reached Russia, China, Australia, even Antarctica, and he was mobbed in the street when he visited America. Juliet John, co-curator of the exhibition Global Dickens, examines how Dickens’s work could travel so far, when the settings of his novels were much closer to home.

Producer: Katy Hickman

More or Less: Behind the Stats - Nurses, flatmates and cats

Nurse suicide rates

There were some worrying figures in the news this week about the number of nurses in England and Wales who died by suicide over the last seven years. We try to work out what the numbers are really telling us.

Are 27 million birds killed a year by cats?

Newspapers reported this week that 27 million birds are killed by cats each year. We find out how this number - which might not really be "news" - was calculated.

How rare are house shares?

A listener got in touch to say she was surprised to read that only 3% of people aged 18 to 34 live in a house share with other people. She feels it must be too low ? but is she living in a London house-sharing bubble? We find out.

Proving that x% of y = y% of x

Why is it that 4% of 75 is the same as 75% of 4? Professor Jennifer Rogers from the University of Oxford joins Tim in the studio to explore a mind-blowing maths ?trick?.

Presenter: Tim Harford Producers: Charlotte McDonald, Darin Graham and Beth Sagar-Fenton