The 24-hour news cycle is just as important to medicine as it is to politics, finance, or sports. At MedPage Today, new information is posted daily, but keeping up can be a challenge. As an aid for our readers, and for a little amusement, here is a 10-question quiz based on the news of the week. Topics include a new study on exercise and heart disease, hearing aids for cognitive decline, and preference on pre-exposure prophylaxis (PrEP) for HIV. 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.