what are/is epigenetics?
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(Sorry if some of the terminology is not spelled 100 % correctly, it’s difficult to keep them apart when learned in another language with almost the same spelling) There is two states your DNA can be in in each nucleus: heterochromatine and euchromatine, with euchromatine being the active “unloosened” state and heterochromatine being more tightly packed by the surrounding histone (it cannot be read in this state).
Epigenetics describes the connection between these states and environmental factors, so basically what “activates” and “deactivates” your DNA for reading so that the right things are active at the right time and not everything performs at 100 % constantly
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