Core Viewpoint - The article discusses the causes and solutions for bad breath, categorizing it into physiological and pathological types, and provides actionable steps to address the issue. Group 1: Types of Bad Breath - Physiological bad breath is often temporary and can be caused by certain foods like garlic, onions, and leeks, which contain sulfur compounds that enter the bloodstream and affect breath [1] - Oral dryness due to factors like staying up late, smoking, or drinking alcohol can lead to reduced saliva production, promoting bacterial growth and the production of volatile sulfur compounds [2] - Pathological bad breath can signal underlying health issues, including oral problems like periodontitis and cavities, as well as systemic diseases such as diabetes and liver failure [4][6] Group 2: Steps to Combat Bad Breath - The first step involves basic oral care, including upgrading brushing techniques and using a tongue scraper to remove bacteria from the tongue [8][9] - The second step focuses on dietary and lifestyle adjustments, recommending high-fiber fruits and vegetables while avoiding foods that promote bacterial growth [11][12][13] - The third step emphasizes targeted treatment for underlying health issues, such as dental care for cavities and gastrointestinal checks for conditions like Helicobacter pylori infection [14][15][16] Group 3: Self-Assessment and Awareness - A simple self-test for bad breath severity involves covering the mouth and nose while exhaling or scraping the tongue to assess odor [18] - Persistent bad breath lasting more than two weeks should prompt medical consultation to rule out serious health concerns [18]