Apoptosis is a gradually orchestrated process of biochemical reactions of a cell from an organism. It can be triggered by many stimuli, including infection, hypoxia, ischemia, nutrient removal, toxins, heat, radiation, drugs, chemicals, and disease. Consequently, these stresses alter the morphology of a cell, including cell shrinkage, nuclear and cytoplasmic condensation, chromatin fragmentation, membrane blebbing, and apoptotic body formation.