Health
Why swallowing mucus may help your immune system
HERE’S THE INTERESTING PART
While disgusting, the post-nasal drip you swallow when you're sick is a biological hacking mechanism. Your mucus traps airborne pathogens, and when you swallow it, the stomach acid neutralizes the live virus. The broken-down viral fragments are then presented to the immune receptors in your intestines, giving your body a highly detailed blueprint to fight the infection.
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