Geriatrics and Gerontology

Genetics of Ageing

The genetic theory of aging states that lifespan is essentially determined by the genes we inherit. According our longevity is primarily determined at the moment of conception and is essentially reliant on our parents and their genes.

The basis behind this theory is that segments of DNA that occur at the end of chromosomes, called Telomeres, determine the maximum lifespan of a cell. Telomeres are pieces of "junk" DNA at the end of chromosomes which become shorter every time a cell divides. These telomeres become shorter and shorter and eventually, the cells cannot divide without losing important pieces of DNA.

Stem Cells and Ageing| Economic and Social Impact of Ageing| Chronic conditions of the Elderly