Dogs' remarkable ability to detect diseases, such as cancer and low blood-sugar levels, has significant implications for human healthcare practices. Their keen sense of smell allows them to identify specific odors associated with various medical conditions, often before traditional diagnostic methods can. This early detection potential can lead to earlier intervention and treatment, potentially saving lives. Additionally, the non-invasive nature of using dogs for disease detection makes it a promising complementary approach in healthcare settings. By incorporating trained dogs into screening programs or utilizing their skills in detecting illnesses like COVID-19, we can enhance current diagnostic capabilities and improve overall patient outcomes.