呼吸道受凉容易生病

Group 1 - The article highlights the increase in respiratory diseases during colder weather, indicating that this is not merely a perception but a reality influenced by cold air [1] - Cold air causes blood vessels in the respiratory mucosa to constrict, leading to reduced local blood supply and increased vulnerability [1] - The movement of cilia on the respiratory mucosal epithelium slows down or even falls off, resulting in increased secretion of airway fluids that can trap pathogens [1] Group 2 - Preventive measures against respiratory diseases include wearing masks when going out, frequent hand washing, and ensuring proper warmth, particularly for the head, neck, abdomen, and feet [1]