3. Having High Blood Pressure
(Joe Raedle/Getty Images)
Having a blood pressure reading that's higher than 120 mmHg/80 mmHg disqualifies you from being at the lowest risk for heart disease; taking blood pressure medication does, too. High blood pressure is most common in those over 35, obese individuals, heavy drinkers, and women taking birth control pills. Following a diet low in sodium and animal fat and rich in whole grains, fruits, and vegetables can help alleviate it.