Experience: my dog found my cancer

Emilie Clark: 'None of the oncologists I met during my ordeal was sceptical about Mia's role in diagnosing my cancer – they have heard it before'

Does sunscreen prevent skin cancer?

Is a high-factor sunscreen enough protection against harmful rays, or should we cover up – or stay out of the sun altogether? Luisa Dillner reports

Patients can hurt doctors, too

Ranjana Srivastava: Doctors nearly always internalise insults that patients fling at them. This can have serious consequences to the quality of the healthcare they're able to provide

Should I have a mammogram?

Dr Dillner: A new study shows that breast cancer screening is no more effective than self-examination. Is it worth going through the discomfort of a mammogram?