Elizabeth Blackburn on the telomere effect: ‘It’s about keeping healthier for longer’

The Nobel winner says keeping telomeres – the ends of our chromosomes – in prime condition can stave off diseases associated with ageing

Bad fad – Ruby Tandoh on how clean eating turned toxic

The backlash against a ‘wellness’ diet is in full swing – and leading chefs and writers associated with it are doing their best to ditch the term. It’s time we called it what it is

Get Control of Sugar Now! Great Choices for Your Healthy Future by Paul McKenna – digested read

John Crace reduces the hypnotist’s self-help advice for the sweet-toothed to an even lower-calorie 800 words

Tim Ferriss: ‘I’m a coyote, a merry prankster, a go-between’

With a new book of tips from billionaires and ‘world-class performers’ out now, the American self-help guru opens up about what motivates him

JK Rowling and Joe Wicks powered 2016 surge in UK book sales

Helped by Harry Potter and the hit fitness guru, year on year takings to December rose sharply to £1.59bn

Ruby Wax: ‘I wanted to find a method to defuse my depression’

The comedian and mental-health campaigner explains how realising that everyone feels crazy led to writing A Mindfulness Guide for the Frazzled

Future Sex: A New Kind of Free Love by Emily Witt – digested read

John Crace brings Emily Witt’s investigation of sexual mores in the Google era to a swifter conclusion

The Case Against Sugar review – an unsweetened attack on diet myths

Gary Taubes’s latest assault on the ruinous effect of sugar on our lives and the promotion of fat-free diets is detailed and compelling

Future Sex: A New Kind of Free Love by Emily Witt – review

One woman’s quest for personal fulfilment proves a handy guide to sex in the internet age

Samer Nashef: ‘Understanding the healthcare system is a matter of life or death’

The cardiac specialist reveals how what really goes on behind the operating door inspired his book The Naked Surgeon