Cell death, also known as programmed cell death or apoptosis, is a highly regulated process by which cells in multicellular organisms are eliminated in a controlled manner. This process is essential for maintaining tissue homeostasis, removing damaged or infected cells, and shaping development. There are several types of cell death, including apoptosis, necrosis, autophagy, and pyroptosis, each with distinct mechanisms and consequences. Understanding the mechanisms of cell death is important in various fields of research, including cancer biology, neurodegenerative diseases, and immunology. Researchers study cell death to develop therapies that target abnormal cell death processes and to better understand the underlying mechanisms that govern this fundamental biological process.