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What are the risks of Atherosclerosis?

By  ,  National Institute of Health
Dec 29, 2012
4.8 / 5(4 Ratings)

Major Risk Factors


•    Unhealthy blood cholesterol levels. This includes high LDL cholesterol (sometimes called “bad” cholesterol) and low HDL cholesterol (sometimes called “good” cholesterol).
•    High blood pressure. Blood pressure is considered high if it stays at or above 140/90 mmHg over time. If you have diabetes or chronic kidney disease, high blood pressure is defined as 130/80 mmHg or higher. (The mmHg is millimeters of mercury—the units used to measure blood pressure.)
•    Smoking. Smoking can damage and tighten blood vessels, raise cholesterol levels, and raise blood pressure. Smoking also doesn't allow enough oxygen to reach the body's tissues.
•    Insulin resistance. This condition occurs if the body can't use its insulin properly. Insulin is a hormone that helps move blood sugar into cells where it's used.
•    Diabetes. This is a disease in which the body's blood sugar level is too high because the body doesn't make enough insulin or doesn't use its insulin properly.
•    Overweight or obesity. The terms "overweight" and "obesity" refer to a person's overall body weight and whether it's too high. Overweight is having extra body weight from muscle, bone, fat, and/or water. Obesity is having a high amount of extra body fat.
•    Lack of physical activity. A lack of physical activity can worsen other risk factors for atherosclerosis, such as unhealthy blood cholesterol levels, high blood pressure, diabetes, and overweight and obesity.
•    Unhealthy diet. An unhealthy diet can raise your risk of atherosclerosis. Foods that are high in saturated and trans fats, cholesterol, sodium (salt), and sugar can worsen other atherosclerosis risk factors.
•    Age. As you get older, your risk of atherosclerosis increases. Genetic or lifestyle factors cause plaque to build in your arteries as you age. By the time you're middle-aged or older, enough plaque has built up to cause signs or symptoms. In men, the risk increases after age 45. In women, the risk increases after age 55.
•    Family history of early heart disease. Your risk of atherosclerosis increases if your father or a brother was diagnosed with heart disease before 55 years of age, or if your mother or a sister was diagnosed with heart disease before 65 years of age.


Although age and a family history of early heart disease are risk factors, it doesn't mean that you will develop atherosclerosis if you have one or both. Controlling other risk factors often can lessen genetic influences and prevent atherosclerosis, even in older adults.


Studies show that an increasing number of children and youth are at risk of atherosclerosis due to a number of causes, including rising childhood obesity rates.


Emerging Risk Factors


Scientists continue to study other possible risk factors for atherosclerosis.


High levels of a protein called C-reactive protein (CRP) in the blood may raise the risk of atherosclerosis and heart attack. High levels of CRP are proof of inflammation in the body. Inflammation is the body's response to injury or infection. Damage to the arteries' inner walls seems to trigger inflammation and help plaque grow.


People who have low CRP levels may develop atherosclerosis at a slower rate than people who have high CRP levels. Research is under way to find out whether reducing inflammation and lowering CRP levels also can reduce the risk of atherosclerosis.


High levels of fats called triglycerides in the blood also may raise the risk of atherosclerosis, particularly in women.


Studies are under way to determine whether genetics may play a role in atherosclerosis risk.

 

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