News tagged with death

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Saving brain cells from stroke

Researchers from the University of Iowa Carver College of Medicine and the University of Miami Miller School of Medicine have shown that a neuroprotective compound tested in rats provides two-pronged protection for brain ...

Mar 02, 2017
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Cell death in gut implicated in bowel disease

The natural life cycle of cells that line the intestine is critical to preserving stable conditions in the gut, according to new research led by a Weill Cornell Medicine investigator. The findings may lead to the development ...

Mar 01, 2017
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Eight a day is clearly best for the heart

You've heard it a thousand times, that little catchphrase with the magic number encouraging you to eat "five a day" of fruits and vegetables for better health. But it turns out that the real magic number is eight, according ...

Feb 23, 2017
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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

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