is cardiovascular disease hereditary?

Yes it is, hypertension, high blood pressure, etc. They are hereditary however there are ways to decrease your likelihood of suffering a similar fate as relatives...Excercise, well balanced diet and regular doctor visits. However you are more prone to suffer from these problems.

yes. but unhealthy diet is the most common cause of it.

Hypertension does run in the family. My mom has hypertension and so does my brother.