Eating healthy and exercising is a great start, but does not guarantee health.

Risk of heart disease increases with several uncontrollable factors: You are more at risk if you are a man, if you are older and if you have a genetic history of diabetes, high cholesterol or high blood pressure.

It is important to follow up with your doctor at least once a year to test your blood pressure and cholesterol levels, even in your 20s.

ABC News