BackRisk Factors for Cardiovascular Disease
Study Guide - Smart Notes
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Reducing Your Risk of Cardiovascular Disease
Modifiable Risk Factors
Modifiable risk factors are those that individuals can change or control to reduce their risk of developing cardiovascular disease (CVD). Addressing these factors through lifestyle changes can significantly lower the likelihood of heart disease.
Elevated Blood Pressure (Hypertension): High blood pressure increases the workload on the heart and blood vessels, raising the risk of CVD. Normal: <120/80 mm Hg
Smoking Tobacco: Smoking damages blood vessels, increases blood pressure, and reduces oxygen in the blood, all of which contribute to CVD.
High Cholesterol: Elevated levels of LDL ("bad") cholesterol and low levels of HDL ("good") cholesterol can lead to plaque buildup in arteries. Desirable total cholesterol: <200 mg/dL
High Triglycerides: High triglyceride levels are associated with an increased risk of CVD.
Diabetes: Poorly controlled blood sugar damages blood vessels and increases CVD risk.
Obesity: Excess body fat, especially around the abdomen, is linked to higher CVD risk.
Physical Inactivity: Lack of regular physical activity contributes to obesity, high blood pressure, and poor cholesterol levels.
Metabolic Syndrome: A cluster of conditions (high blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol levels) that together increase CVD risk.
Modifiable CVD Risk Factor | Key Details |
|---|---|
Elevated Blood Pressure | Normal: <120/80 mm Hg |
Smoking Tobacco | Damages blood vessels, increases blood pressure, reduces oxygen in blood |
High Cholesterol | Total cholesterol: <200 mg/dL; LDL: <100 mg/dL; HDL: >60 mg/dL |
High Triglycerides | High levels increase CVD risk |
Diabetes | Increases risk of CVD |
Obesity | Excess body fat, especially abdominal |
Physical Inactivity | Increases risk of CVD |
Metabolic Syndrome | Cluster of risk factors: high BP, high blood sugar, excess waist fat, abnormal cholesterol |
Example:
Engaging in moderate physical activity several times a week and maintaining a healthy diet can significantly reduce modifiable risk factors for CVD.
Non-Modifiable Risk Factors
Non-modifiable risk factors are those that cannot be changed or controlled. These factors are important for identifying individuals at higher risk but cannot be altered through lifestyle changes.
Genetics: Family history of CVD increases risk due to inherited genetic factors.
Age: Risk of CVD increases with age, particularly after age 55 for men and 65 for women.
Sex: Men have a higher risk of heart attack earlier in life, while women's risk increases after menopause.
Ethnicity: Certain ethnic groups, such as African Americans, have a higher prevalence of CVD.
Non-Modifiable CVD Risk Factor | Key Details |
|---|---|
Genetics | Family history increases risk |
Age | Risk increases with age |
Sex | Men at higher risk earlier; women's risk rises after menopause |
Ethnicity | African Americans at highest risk |
Example:
A 68-year-old African American man with a family history of heart attack is at high risk for CVD based on non-modifiable factors.
Key Definitions
Cardiovascular Disease (CVD): A group of disorders of the heart and blood vessels, including coronary artery disease, hypertension, heart failure, and stroke.
Hypertension: Persistently high blood pressure, a major risk factor for CVD.
Cholesterol: A fatty substance in the blood; high levels of LDL cholesterol increase CVD risk.
Triglycerides: A type of fat in the blood; high levels are linked to increased CVD risk.
Metabolic Syndrome: A cluster of conditions that occur together, increasing the risk of heart disease, stroke, and diabetes.
Prevention Strategies
Engage in regular physical activity (at least 150 minutes of moderate-intensity exercise per week).
Maintain a healthy diet low in saturated fat, trans fat, and cholesterol.
Avoid tobacco use and limit alcohol consumption.
Monitor and manage blood pressure, cholesterol, and blood sugar levels.
Maintain a healthy weight.
Additional info:
While non-modifiable risk factors cannot be changed, awareness of these factors can help guide screening and early intervention. Modifiable risk factors are the primary targets for prevention efforts.