Apoptosis is a programmed cell death process that was first recognized in 1972 and plays an important role in development and disease. It is characterized by cell shrinkage, chromatin condensation, and fragmentation into apoptotic bodies without inflammatory response. The process is initiated through either the extrinsic receptor pathway or intrinsic mitochondrial pathway and executed via caspase proteases that dismantle the cell in a controlled manner. This ensures apoptosis occurs without damaging surrounding cells.