Does a daily aspirin prevent cancer?

A study suggests that an aspirin a day can help prevent colon, oesophagus and stomach cancers. So should we all be self-medicating? Luisa Dillner investigates

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'