Why is eating your snot bad for you?

Eating your snot is generally considered unhygienic and can introduce bacteria or viruses into your body, potentially leading to infections. Additionally, snot serves a protective function by trapping dust, allergens, and pathogens, so consuming it might counteract its role in keeping your respiratory system clean. While it's not typically harmful in small amounts, it's better to avoid the habit for overall health and hygiene reasons.