The concept of "Big Data" refers to the massive and complex sets of data that have become increasingly available due to advancements in technology and the proliferation of digital devices and systems. These large datasets offer valuable insights that can drive decision-making, innovation, and efficiency across various sectors. In recent years, the medical and healthcare industry has been harnessing the power of big data to improve patient care and medical research. One particular application in this field is the use of "Life Saver Leads," which are data-driven strategies and tools aimed at saving lives by predicting, preventing, and responding to medical emergencies. This article explores the evolution of big data in the context of Life Saver Leads, highlighting both the challenges and opportunities that this evolution presents.