Once upon a time, there was a man named Mehmet Oz who was famous for hosting a TV show and being a surgeon. He might become in charge of a big program called Medicare and Medicaid. Some people think he can do it, but others have concerns. Meanwhile, tiny pieces of plastic, called microplastics, are showing up in our brains. Scientists are studying if they can cause health problems. They are also studying the links between vaccines and autism. Turns out, vaccines do not cause autism. In other news, extreme heat can lead to more hospitalizations for people with Alzheimer's. And there is a new vaccine trial for Ebola Sudan, a deadly disease. So, there are many things happening in the world of health and medicine. Stay tuned for more updates!