Editor's note

We all know that opioids are addictive and have seen the carnage caused by these drugs. But how, exactly, do you create a “safe” opioid painkiller stripped of the euphoric addictive side effects that make these drugs so dangerous? One team of biochemists is designing a new “biased opioid” that targets pain and nothing else.

After teaching the novels of Charles Dickens for 20 years, Sarah Bilston looks at the Trump administration’s separation of immigrant children from their parents in a particular light. She writes how Dickens’s world, “a bizarre and strangely cruel period in human history…has come to life again.”

Today is International Yoga Day, when people will take out their yoga mats to practice yogic exercises or sit in meditation. Part of the appeal of yoga lies in how it is seen as an ancient and mystical tradition. In truth, says Penn State’s Jeremy Engels, the practice of yoga has gone through some profound shifts to keep up with contemporary times.

Bijal Trivedi

Science and Technology Editor

Top stories

shutterstock.

Opioids don't have to be addictive – the new versions will treat pain without triggering pleasure

Tao Che, University of North Carolina – Chapel Hill

Scientists have taken atomic resolution snapshots of an opioid receptor interacting with a drug. Now they are using these images to design "biased" opioids that block pain without the dangerous side effects.

Almost 1,500 immigrant boys, aged 10 to 17, were separated from their parents and brought to stay at Casa Padre in Brownsville, Texas. Department of Health and Human Services

Breaking up families? America looks like a Dickens novel

Sarah Bilston, Trinity College

There are strong parallels between the Trump administration’s policy on immigrant families and the 19th century's 'New' Poor Laws of England, whose cruelty was illuminated by writer Charles Dickens.

International Yoga Day in London 2017 in Trafalgar Square. Anna Sunderland Engels.

Yoga isn't timeless: it's changing to meet contemporary needs

Jeremy David Engels, Pennsylvania State University

Part of yoga's appeal is that it continues to be seen as a mystical, ancient tradition. The truth is, the practice of yoga has gone through some profound shifts.

Economy + Business

Health + Medicine

Science + Technology

  • Why our brains see the world as 'us' versus 'them'

    Leslie Henderson, Dartmouth College

    Our neural circuits lead us to find comfort in those like us and unease with those who differ, resulting in a battle between reward and distrust. But these brain connections aren't the end of the story.

Education

Politics + Society

Trending on site

Today’s chart