Cold and flu season means stuffy noses and plenty of sneezes. CNN’s Meg Tirrell examines why your body produces so much mucus and what the details say about your immune system.
Must Read
Trump Signs Memo Directing DHS To Pay All Workers Amid Shutdown
President Donald Trump has ordered all Department of Homeland Security employees to be paid during the ongoing partial government shutdown, while House and Senate leaders are working to pass a bill to restore funding for DHS.
