A nurse who ran in the London Marathon last week found her Guinness World Record in jeopardy because she didn’t wear a dress. Jessica Anderson, a professional nurse, ran the marathon in 3 hours 8 minutes 22 seconds and became the fastest woman to run it in a nurse’s uniform — topping a 2015 record by 32 seconds. But she ran in her usual blue scrubs, which Guinness didn’t accept. An official with Guinness said: “For the purposes of this record, the nurse’s uniform must include: a blue or white nurse dress, a white pinafore apron, a traditional white nurse’s cap. Tights are optional.” Now social media users are backing Anderson and disparaging Guinness’ take on nurse uniforms with the hashtag #WhatNursesWear.