Your mouth, nose, throat, sinuses and lungs are lined with mucus membranes. These membranes contain mucus glands that produce - surprise - mucus. Mucus-producing membranes line specific passages in your body, like the respiratory and digestive tracts, for protection and support.
Because it helps the relationship between the worker and the patient.
Would you feel safer with a muscular man, long hair, tattoos, and piercings. Or an elderly women with gray hair pulled back in a bun with a warm smile.
Wash hands
wash fruits vegetables etc..
cool to the right temperature
keep certain types of food separate
Through healthy eating and exercise