A clear look at the biology of death, from how it’s defined and what the brain does at the final moment to how the body changes in the hours and days after.

Death, the total cessation of life processes that eventually occurs in all living organisms. The state of human death has always been obscured by mystery and superstition, and its precise definition remains controversial, differing according to culture and legal systems.

Death is often thought of as a single, frozen moment—a last breath, a flat line, a final heartbeat. But medically speaking, death is not so much an instant as it is a process, a cascade of biological events that unfold across minutes, hours, and even days.

This article explores death from a broad scientific humanist perspective, integrating insights from medicine, biology, psychology, sociology, and philosophy.

The Science of Death: A Scientific and Philosophical Guide to the End ...

The meaning of DEATH is a permanent cessation of all vital functions : the end of life. How to use death in a sentence.

Death is the permanent end of the life of a biological organism. Death may refer to the end of life as either an event or condition. Many factors can cause or contribute to an organism's death, including predation, disease, habitat destruction, senescence, malnutrition, and accidents.