Major Risk Factors
High Blood Pressure (Hypertension)
High blood pressure increases your risk of heart disease, heart attack, and stroke. Though other risk factors can lead to high blood pressure, you can have it without having other risk factors. If you are obese, you smoke, or you have high blood cholesterol levels along with high blood pressure, your risk of heart disease or stroke greatly increases.
Blood pressure can vary with activity and with age, but a healthy adult who is resting generally has a systolic pressure reading between 120 and 130 and a diastolic pressure reading between 80 and 90 (or below).
High Blood Cholesterol
One of the major risk factors for heart disease is high blood cholesterol. Cholesterol, a fat-like substance carried in your blood, is found in all of your body's cells. Your liver produces all of the cholesterol your body needs to form cell membranes and to make certain hormones.
Too much low-density lipoprotein (LDL or "bad cholesterol") in the blood is linked to plaque formation on artery walls, which starts the disease process called atherosclerosis. When plaque builds up in the coronary arteries that supply blood to the heart, you are at greater risk of having a heart attack.
Diabetes
Heart problems are the leading cause of death among people with diabetes, especially in the case of adult-onset or Type II diabetes (also known as non-insulin-dependent diabetes). The American Heart Association estimates that 65% of patients with diabetes die of some form of cardiovascular disease.
Obesity and Overweight
Extra weight is thought to lead to increased total cholesterol levels, high blood pressure, and an increased risk of coronary artery disease. Obesity increases your chances of developing other risk factors for heart disease, especially high blood pressure, high blood cholesterol, and diabetes.
Many doctors now measure obesity in terms of body mass index (BMI), which is a formula of kilograms divided by height in meters squared (BMI =W [kg]/H [m2]). According to the National Heart, Lung, and Blood Institute (NHLBI), being overweight is defined as having a BMI over 25. Those with a number over 30 are considered obese.
Smoking
Most people know that cigarette and tabacco smoking increases your risk of lung cancer, but fewer realize that it also greatly increases your risk of heart disease and peripheral vascular disease (disease in the vessels that supply blood to the arms and legs). According to the American Heart Association, more than 400,000 Americans die each year of smoking-related illnesses. Many of these deaths are because of the effects of smoking on the heart and blood vessels.
Research has shown that smoking increases heart rate, tightens major arteries, and can create irregularities in the timing of heartbeats, all of which make your heart work harder. Smoking also raises blood pressure, which increases the risk of stroke in people who already have high blood pressure. Although nicotine is the main active agent in cigarette smoke, other chemicals and compounds like tar and carbon monoxide are also harmful to your heart in a variety of ways. These chemicals lead to the buildup of fatty plaque in the arteries, possibly by injuring the vessel walls. And they also affect cholesterol and levels of fibrinogen, which is a blood-clotting material. This increases the risk of a blood clot that can lead to a heart attack.
Physical Inactivity
People who are not active have a greater risk of heart attack than do people who exercise regularly. Exercise burns calories, helps to control cholesterol levels and diabetes, and may lower blood pressure. Exercise also strengthens the heart muscle and makes the arteries more flexible. Those who actively burn 500 to 3500 calories per week, either at work or through exercise, can expect to live longer than people who do not exercise. Even moderate-intensity exercise is helpful if done regularly.
Gender
Overall, men have a higher risk of heart attack than women. But the difference narrows after women reach menopause. After the age of 65, the risk of heart disease is about the same between the sexes when other risk factors are similar. The link seems to be progesterone levels. Women with higher progesterone levels (such as during normal reproductive years) have less risk of ‘artery spasm’ thereby reducing their risk. Often women further compound the problem by taking HRT - which further increases heart disease risk. The use of natural progesterone creams and wild yam creams can assist with naturally raising progesterone levels.
Heredity
Heart disease tends to run in families. For example, if your parents or siblings had a heart or circulatory problem before age 55, then you are at greater risk for heart disease than someone who does not have that family history. Risk factors (including high blood pressure, diabetes, and obesity) may also be passed from one generation to another.
Age
Older age is a risk factor for heart disease. In fact, about 4 of every 5 deaths due to heart disease occur in people older than 65.
As we age, our hearts tend to not work as well. The heart's walls may thicken, arteries may stiffen and harden, and the heart is less able to pump blood to the muscles of the body. Because of these changes, the risk of developing cardiovascular disease increases with age. Because of their sex hormones, women are usually protected from heart disease until menopause, and then their risk increases. Women 65 and older have about the same risk of cardiovascular disease as men of the same age.
Contributing Risk Factors
Stress
Stress is considered a contributing risk factor for heart disease because little is known about its effects. The effects of emotional stress, behavior habits, and socioeconomic status on the risk of heart disease and heart attack have not been proven. That is because we all deal with stress differently: how much and in what way stress affects us can vary from person to person.
Researchers have identified several reasons why stress may affect the heart.
Stressful situations raise your heart rate and blood pressure, increasing the your heart's need for oxygen. This need for oxygen can bring on angina pectoris, or chest pain, in people who already have heart disease.
During times of stress, the nervous system releases extra hormones (most often adrenaline). These hormones raise blood pressure, which can injure the lining of the arteries. When the arteries heal, the walls may harden or thicken, making is easier for plaque to build up.
Stress also increases the amount of blood clotting factors that circulate in your blood, and makes it more likely that a clot will form. Clots may then block an artery narrowed by plaque and cause a heart attack.
Stress may also contribute to other risk factors. For example, people who are stressed may overeat for comfort, start smoking, or smoke more than they normally would.
Sex hormones
Sex hormones appear to play a role in heart disease. Among women younger than 40, heart disease is rare. But between the ages 40 and 65, around the time when most women go through menopause, the chances that a woman will have a heart attack greatly increase. From 65 onward, women make up about half of all heart attack victims. As mentioned before - it is believed this is due to declining levels of progesterone in the body. This can be boosted by natural creams such as wild yam or natural progesterone.
Birth control pills
Early types of birth control pills contained high levels of estrogen and progestin, and taking these pills increased the chances of heart disease and stroke, especially in women older than 35 who smoked. But birth control pills today contain much lower doses of hormones. Birth control pills are considered safe for women younger than 35, who do not smoke or have high blood pressure.
But if you smoke or have other risk factors, birth control pills will increase your risk of heart disease and blood clots, especially if you are older than 35. According to the American Heart Association, women who take birth control pills should have yearly check-ups that test blood pressure, triglyceride, and glucose levels.
Alcohol
Drinking more than a moderate amount of alcohol can cause heart-related problems such as high blood pressure, stroke, irregular heartbeats, and cardiomyopathy (disease of the heart muscle). And the average drink has between 100 and 200 calories. Calories from alcohol often add fat to the body, which may increase the risk of heart disease.
It is never too late or too early to begin improving heart health. Some risk factors can be controlled, while others cannot. But, by eliminating risk factors that you can change and by properly managing those that you cannot control, you may greatly reduce your risk of heart disease.
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