mucosal barrier

The mucosal barrier is a natural protective layer lining various parts of your body, like your mouth, gut, and nose. It acts as a frontline defense by trapping harmful substances, bacteria, and viruses, preventing them from entering your bloodstream and causing infections. Made of mucus, cells, and immune components, this barrier also helps maintain a balanced environment for good bacteria. When healthy, it efficiently shields your body but can weaken due to factors like illness, stress, or poor diet, increasing susceptibility to infections and inflammation.