December 23, 20243 min readA mixture of colder temperatures, lower humidity and more time spent indoors could explain the uptick in cold viruses during the winter holidaysBy Libby Richards & The Conversation US Respiratory viruses rise in the wintertime, but not because people are outside in the cold. Jaromír Chalabala/Alamy Stock PhotoThe following essay is reprinted with permission from The Conversation, an online publication covering the latest research.You’ve probably heard “Don’t go outside in the winter with your hair wet or without a coat; you’ll catch a cold.”That’s not exactly…