What are some ways to prevent high blood pressure and heart disease if it is hereditary?

My mom and dad suffer from high blood pressure,high cholesterol. It run on both sides of the family,that along with diabetes and heart disease. My mom started taking blood pressure medication young,in her later 20's. My dad suffered from a stroke due to high blood pressure. I am 22yrs old and do not want to suffer this especially while young. Are there any ways I can be proactive about not suffering from those conditions now and later on in life being that it is hereditary? Or do I not have a chance in preventing it?