Personal hygiene involves practices like bathing, washing hands, brushing teeth, and nail care that help prevent the spread of illnesses. It is important to wash hands thoroughly with soap after using the restroom or anytime they have touched germy surfaces. People should shower with soap at least every other day to remove dirt, oils, and bacteria from the skin. Teeth should be brushed twice a day for two minutes each time and flossing once a day helps remove food and prevents gingivitis. Hands pick up germs throughout the day and should be washed before eating, after using the bathroom, sneezing, or touching animals.