Editor's note

A few hours after Donald Trump signed an executive order on Monday, loading more sanctions on Iran, a spokesman for Iran’s foreign ministry took to Twitter. Abbas Mousavi wrote that the move to impose sanctions on Iran’s supreme leader, Ayatollah Ali Khamenei, and foreign minister Mohammad Javad Zarif, marked the “permanent closure of the path of diplomacy”.

Before Trump took office, tensions with Iran were beginning to thaw, eased by the signing of the Iran nuclear deal in 2015. Trump’s decision to pull the US out of the deal in May 2018 has led to steadily mounting tensions. Attacks on oil tankers in the Strait of Hormuz, and the recent downing of a US drone have brought the two countries teetering perilously close to war. Trump said he had only pulled out of launching strikes on Iran last week because he found out 150 people could be killed.

Trump’s approach of pushing things to the brink and assuming that others will cave in may work in the world of business, but this is foreign policy, and Iran has little left to lose. Trump’s strategy on Iran has backed the US into a corner.

A third of adults will experience chronic pain at some point in their life. Scientists still don’t know exactly why some people get such pain and others don’t, but genetic research is helping us better understand the biology behind it. Now, a huge DNA study, involving more than 300,000 people, found chronic pain was linked to depression, body mass index, schizophrenia – and more.

Alongside some spellbinding football, the 2019 Women’s World Cup will be remembered for some controversy and ill-feeling about refereeing decisions made with the help of the Video Assisted Referee, or VAR. The problem is that a football referee’s decisions always involve a degree of discretion, which technology makes impossible.

Gemma Ware

Society Editor

Top stories

New sanctions heading Iran’s way. Kevin Dietsch/EPA

Why Donald Trump is backing the US into a corner on Iran

Natasha Lindstaedt, University of Essex

The US has imposed new sanctions against Iran's top leaders, but its foreign policy has no clear focus.

Shutterstock

New genetic study links chronic pain to depression, BMI, schizophrenia, arthritis and PTSD

Keira Johnston, University of Glasgow

Discovery of genetic overlap between chronic pain and a host of other conditions could help provide better treatments.

German referee Felix Brych looks at a replay of the video assistant referee (VAR) during the UEFA Nations League semi final soccer match between Portugal and Switzerland, June 2019. EPA-EFE/Fernando Veludo

Video Assistant Referee: in football, as in war, sometimes we need a human touch

Mike Ryder, Lancaster University

Many fans think the VAR is ruining the Women's World Cup.

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