Medical research

Study identifies a key protein for healthy aging

Life expectancy and healthy aging in mice can be determined by a protein present in some cells of the immune system, according to a study published in the journal Cell Reports. When this protein—known as the CD300f immune ...

Health

Are Aussie women ageing up to 20 years faster than U.S. women?

Across the developed world, looking older than your chronological age is considered a drawback. Western societies value physical beauty and vitality while science is actively trying to find a way to reverse the ageing process ...

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Senescence or biological aging is the change in the biology of an organism as it ages after its maturity. Such changes range from those affecting its cells and their function to those affecting the whole organism. There are a number of theories as to why senescence occurs; for example, some posit it is programmed by gene expression changes, others that it is the cumulative damage caused by biological processes. Senescence is not the inevitable fate of all organisms. A variety of organisms, including some cold-blooded animals, have negligible senescence. Whether senescence as a biological process can be slowed down, halted or even reversed, is a subject of current scientific speculation and research.

The word senescence is derived from the Latin word senex, meaning old man, old age, or advanced in age.

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