Early diagnosis refers to the identification of a medical condition or disease in its initial stages, before symptoms become apparent or progress to a more serious state. This research area focuses on developing methods and tools for detecting diseases early on, which can lead to more effective treatment and improved outcomes for patients. Early diagnosis can be crucial in preventing complications, reducing healthcare costs, and saving lives. Researchers in this field typically work on improving screening tests, developing biomarkers, and exploring innovative technologies for early detection of various diseases such as cancer, Alzheimer's, and cardiovascular disorders.