A glance at the world's deadliest quakes in past 25 years

A magnitude 7.8 earthquake shook Turkey and Syria on Monday, killing thousands of people in the two countries. The death toll is expected to rise as rescuers working in cold and snow look for trapped people in the rubble ...

Quake deaths pass 5,000 as Turkey, Syria seek survivors

Rescuers raced Tuesday to find survivors in the rubble of thousands of buildings brought down by a 7.8 magnitude earthquake and multiple aftershocks that struck eastern Turkey and neighboring Syria, with the discovery of ...

Breakthrough discovery in mitochondrial regulation

Researchers from Osaka University identify a system known as the "GET pathway" as essential for efficient regulation of the numbers of energy-producing mitochondria

page 1 from 40

Death

Death is the permanent termination of the biological functions that define a living organism. It refers to both a particular event and to the condition that results thereby. The true nature of the latter has for millennia been a central concern of the world's religious traditions and of philosophical enquiry. Many religions maintain faith in either some kind of afterlife or reincarnation. The effect of physical death on any possible mind or soul remains for many an open question.

Animals almost without exception (see hydra) die in due course from senescence. Intervening phenomena which commonly bring death earlier include malnutrition, predation, disease, accidents resulting in terminal physical injury, or, in extreme circumstances, grave ecosystem disruption. Intentional human activity causing death includes suicide, homicide, and war. Roughly 150,000 people die each day across the globe. Death in the natural world can also occur as an indirect result of human activity: an increasing cause of species depletion in recent times has been destruction of ecological systems as a consequence of the widening spread of industrial technology.

Death in this context is now seen as less an event than a process: conditions once considered indicative of death are now reversible. Where in the process a dividing line is drawn between life and death depends on factors beyond the presence or absence of vital signs. In general, clinical death is neither necessary nor sufficient for a determination of legal death. A patient with working heart and lungs determined to be brain dead can be pronounced legally dead without clinical death occurring. Precise medical definition of death, in other words, becomes more problematic, paradoxically, as scientific knowledge and technology advance.

This text uses material from Wikipedia, licensed under CC BY-SA