As a breast cancer survivor, I understand the grip of fear. But the best thing is to talk to a doctor then make your own choicesIt was hard to avoid the story, late last week: “Breast cancer risk from using HRT is twice what was thought,” it warned. I read...

Volunteers in Salvador’s favelas are collecting data on deadly infections and inequality to help campaign for better sanitationWearing crisp, white T-shirts and carrying tablets, the students fan out through Marechal Rondon – a bustling favela spread over hillsides and a valley in Brazil’s north-eastern city of Salvador. As they walk,...