Editor's note

Theresa May says it’s “highly likely” there was Russian involvement in the nerve agent attack on former spy Sergei Skripal and his daughter. But how should the British government react? David Galbreath explains the sanctions regime currently in place against Russia, and says Britain’s options for a tough response are limited. The chemical used in the attack has also been named as Novichock: here’s what we know about this “newby” nerve agent.

Big Tobacco is pouring millions into a new anti-smoking foundation. But don’t be fooled, says Andrew Rowell. While Philip Morris International claims to be “designing a smoke-free future”, leaked documents reveal the industry remains hooked on tobacco – and its same old tricks.

For every girl that is diagnosed with attention deficit hyperactivity disorder (ADHD), up to seven boys are – but why the difference? With the help of a team of international researchers, and data, Joanna Martin explains.

Gemma Ware

Society Editor

Top stories

Investigations continue into the nerve agent attack on Sergei Skripal and his daughter. Andrew Matthews/PA Wire

Russian spy attack: why Britain is limited in how it responds to Russia

David J Galbreath, University of Bath

The UK is pointing the finger at Russia for the nerve agent attack on a former spy. How should the government react?

Hard to stub out. Shutterstock

Big Tobacco is funding the anti-smoking lobby – but leaked documents reveal the real reason why

Andrew Rowell, University of Bath

Despite talk of a smoke-free world, Big Tobacco is up to its same old tricks.

Classroom distraction. Tatyana Dzemileva/Shutterstock

Why is ADHD more common in boys than girls?

Joanna Martin, Cardiff University

For every girl diagnosed with ADHD, up to seven boys are diagnosed. Researchers looked at risk factors, the role of genetics, and mental health for clues.

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