Rob Welcome to the show, Dr. Apple Day! Apple Please, just call me Apple. Rob Sure. So, Apple, you're a doctor. Let's talk about winter sicknesses. Apple OK. In the winter, people often get colds. Rob I don't like colds. They block your nose. Apple Yes. And you often get a sore throat, too. Rob People can also get the flu in winter. Apple Yes. Colds aren't nice. But the flu is worse. Rob The flu can cause bad headaches. Apple Yes. And you often get a fever with the flu. Rob I usually feel very warm and uncomfortable with the flu. Apple Exactly, Rob. The fever makes you hot.