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Can the environment change our DNA?

What is epigenetics, and how is it related to longevity?


Humanity has long been interested in longevity and how to live longer and healthier. The term epigenetics has been associated with this topic. But what is epigenetics?

Environmental factors can influence an individual's gene expression.
Environmental factors can influence an individual's gene expression.

Epigenetics offers insight into the rate of ageing. It is a branch of molecular biology that deals with gene expression change unrelated to changes in DNA sequence. It recognises that environmental factors can also influence an individual's gene expression.


The term epigenetics was coined in the 1940s. Literally, epigenome means "above the genome."