Death is the permanent cessation of all biological functions that sustain a living organism. Phenomena which commonly bring about death include aging, predation, poisoning, malnutrition, disease, suicide, homicide, drug intoxication, starvation, dehydration, and accidents or major trauma resulting in fatal injury. The remains of a living organism begin to decompose shortly after death. It is an inevitable process eventually occurring in all living organisms.
As of the early 21st century, over 150,000 humans die each day.Death, particularly of humans, has commonly been considered a sad or unpleasant occasion, due to the affection for the deceased and the termination of social and familial bonds. Other concerns include fear of death, necrophobia, anxiety, sorrow, grief, emotional pain, depression, sympathy, compassion, solitude, or saudade.
Many cultures and religions have the idea of an afterlife, and also hold the idea of judgement and reward for good deeds or punishment for sin.
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