"There's no question stress can affect people's immunity and make them more prone to getting sick," Dr. Patrick Neustatter, author of Managing Your Doctor, told BuzzFeed Health. "And there's no question that quite a lot of people are getting stressed about this election cycle."
Stress influences your hormones, causing you to produce more cortisol, which tends to suppress your immune system, explained Neustatter. Stress also suppresses the production of gamma interferon and T-cells, which help fight off infections. "When they're suppressed by stress, you have less fighting ability," he said.