Now, some people claim that eating your boogers can strengthen your ... Which get trapped by a layer of sticky snot that lines your nostrils. It's like fly paper for the flu.

Another person tweeted, “This video of Taylor Swift eating her boogers and throwing snot on the stage keeps popping up.

Myth or fact? Snot can be good for you. Producing mucus will help clear your sinuses, help clear your nasal passages. Laura Martin, MD, MPH And the snot and the mucus, they help keep our mucous ...

but the mucus could be part of their feeding strategy, or could be used in defense against predators. In the lab, when upside-down jellyfish were agitated or eating, they released clouds of mucus.