Editor's note

Anyone who has turned to a so-called “paleo” diet is in for a nasty surprise. The eating habits of prehistoric humans and their ancestors caused many of the same kinds of dental problems as we see today. Ian Towle explains how he discovered holes in 2.5m-year-old teeth fossils that look just like those caused by fizzy drinks.

The 1970s are often seen as an age of sexism, but a school of thought emerged during the decade that might offer inspiration for today. The men’s liberation movement promoted honesty and emotion as a way to combat toxic masculinity, says Emily Priscott. And Bettina Büchel looks to the future, and the influence of social bias on gender inequality. She warns this bias is seeping into designs for artificial intelligence which, if it continues unchecked, will amplify sexism in society.

Despite the fact that conventional medicine is slow to recognise the relationship between nutrition and good mental health, a growing body of scientific evidence is making the connection explicit. As the use of antidepressants continues to rise, Joyce Cavaye argues that to reduce the burden of mental illness doctors must embrace a more body-and-mind approach.

All the best.

Stephen Harris

Commissioning + Science Editor

Top story

Teeth fossils with evidence of dental lesions from Australopithecus africanus. Ian Towle

Human ancestors had the same dental problems as us – even without fizzy drinks and sweets

Ian Towle, Liverpool John Moores University

Prehistoric humans and their predecessors may have had a very different diet but their teeth suffered in similar ways to ours.

James Vaughan

Men's liberation: what today's #MeToo sceptics can learn from their 1970s brothers

Emily Priscott, University of Sussex

If you feel threatened or confused by the #MeToo movement, try channelling your masculinist mystique.

Shutterstock

Why nutritional psychiatry is the future of mental health treatment

Joyce Cavaye, The Open University

A growing body of scientific evidence is making clear the connection between good nutrition and good mental health.

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