The 24-hour news cycle is just as important to medicine as it is to politics, finance, or sports. At Ƶ, new information is posted daily, but keeping up can be a challenge. As an aid for our readers, here is a 10-question quiz based on the news of the week. Topics include screening for cannabis before surgery, Ashton Kutcher's health scare, and the brains of teens who frequent social media. After taking the quiz, scroll down in your browser window to find the correct answers and explanations, as well as links to the original articles.