Answer:
The environment can alter gene expression, changing both women's risk of heart disease.
Step-by-step explanation:
Epigenetics studies an organism's change as a result of modification in his gene expression while his genetic code remains the same. Epigenetics controls normal development and homeostasis that would have been defined by the natural genes of a person, characterized by DNA and chromatin modifications(and all related systems).
Environmental factors that have become lifestyle habits are identified as some things that might modify epigenetic patterns. They include: diet, obesity, physical activity, tobacco smoking, alcohol consumption, environmental pollutants, psychological stress, and over working such as doing night shifts.