What causes a heart attack?

   
Age - which is considered the main risk factor. When a man is 45 years, and the woman is over 55, your risk of heart attack begins to increase significantly.
Angina - Angina pectoris is a condition where not enough oxygen to the heart of the patient. This raises the risk of a heart attack. In some cases, a diagnosis of angina was wrong - it could have been a mild heart attack instead. The main difference between a heart attack and angina, is that patients with angina feel better in 15 to 30 minutes after taking the medication while the patient is not a heart attack.
Blood levels of cholesterol, cholesterol levels, if a person in the blood is high, he / she faces an increased risk of developing blood clots in the arteries. Blood clots can block the blood supply to the heart muscle, causing a heart attack.

Diabetes - people with diabetes have an increased risk of developing various diseases and conditions, many of them contribute to an increased risk of heart attack.
Diet - a person who consumes large quantities of, for example, animal fats or saturated fats, may be at greater risk of suffering a heart attack.
Genes - you can inherit an increased risk of heart attack by their parents, and / or their parents.
Heart surgery - Patients who underwent cardiac surgery are at increased risk of heart attack.
Hypertension (high blood pressure) - this could be due to physical inactivity, overweight / obesity, diabetes, genes and other factors. 
Obesity, overweight - as people become increasingly overweight, especially children, experts say heart attacks are more frequent in the future (if overweight children become overweight adults).
Physical inactivity - people who do not exercise much greater risk of heart attack compared to people who exercise regularly.
Previous heart attack - anyone who has had a heart attack is more likely to have another, compared with others.
Smoking - People who smoke heavily or regularly have a much higher risk of heart attack compared with people who have never smoked and those who left. Regular consumption of snuff means that smoking every day.