Who is at risk of a heart attack?

Every living person is at risk of a heart attack. Heart failure is the leading cause of death even if it is secondary to another disease like cancer or other life threatening disease. This makes the classification of actual cause of death speculative. If a person only smokes for a year of their life and dies, smoking can be placed as the cause. People who have poor diets, do not exercise, eat too much salt, eat high cholesterol foods, smoke and drink to excess can be classified as high risk to heart disease.