‘I spent a week crying. I’ve never had an injury in my life!’ Why do so many fitness fans end up needing surgery?

From the 47-year-old runner who needs a double hip replacement to the 27-year-old CrossFitter with a ruptured ACL, those who push their bodies too hard often regret it. What are the lessons for the rest of us?

The one change that worked: I learned to love my arms – after decades of hating and hiding them

It took a heatwave to get me to shed my shame and my sleeves, but now there’s no stopping me. Life is cooler in every way

The dead doctor and a dicey diet: how a ban made a hero of Egypt’s rogue medic

Diaa al-Awadi claimed insulin was a fraud, smoking was safe and chemotherapy useless. But despite losing his medical licence and dying at early age, his reach continues to grow

Repeated use of saunas could help people cope better in heatwaves, scientists say

Growing number of studies assessing whether heat training can help people prepare for scorching temperatures

Deep breathing: the asthma clinic buried 250 metres into an Armenian salt mine

Underground clinic’s fate hangs in the balance after government withdrew state funding

Amid the social and political panic about falling birthrates, why not ask new mothers what they think?

Medals and cash bonuses have been mooted as incentives, but the priority is for policy that addresses women’s real concerns, says author and journalist Lucy Jones

Four types of thinker have been identified. Which one are you?

Investigation finds evidence of distinct groups, from big-picture thinkers to those who sweat the small stuff

13 surprising reasons you’re always dog tired – and what to do about it

Feel lethargic even after a full night’s sleep? From not enough fibre to too much sitting, experts explain why your get up and go has got up and gone

At-home STI test pulled from Australian shelves after failing to detect infections

Exclusive: TGA finds Touch Biotechnology test for chlamydia and gonorrhoea ‘is not reliable’ and has affected an unspecified number of people