A look at the top medical headlines for the week of April 4, 2021 including: One of the oldest drugs in the world, aspirin, may help prevent COVID-19 infections and make illnesses that do take place much less serious. Then, people with Crohn’s disease often have flare-ups. One reason those sores don’t heal—fungus in foods. And finally… bosses who demand that employees keep their noses to the grindstone may be hurting productivity.