The signals that make cells self-destruct

Most human hearts look nearly identical—muscle cells in the same places, blood vessel structures in the same orientations. Organs such as hearts or stomachs look alike and function the same across individual organisms in ...

Metabolic mutations help bacteria resist drug treatment

Bacteria have many ways to evade the antibiotics that we use against them. Each year, at least 2.8 million people in the United States develop an antibiotic-resistant infection, and more than 35,000 people die from such infections, ...

Cell death shines a light on the origins of complex life

Organelles continue to thrive after the cells within which they exist die, a team of University of Bristol scientists have found, overturning previous assumptions that organelles decay too quickly to be fossilized.

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Death

Death is the permanent termination of the biological functions that sustain a living organism. Phenomena which commonly bring about death include old age, predation, malnutrition, disease, and accidents or trauma resulting in terminal injury.

The nature of death has been for millennia a central concern of the world's religious traditions and of philosophical enquiry, and belief in some kind of afterlife or rebirth has been a central aspect of religious faith.

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