George's doctor told him that he is at an increased risk of developing heart disease. Which of these is NOT a risk factor for George?

Question

BlackTom AI · Accepted Answer

High blood pressure, family history, and obesity are established contributors to cardiovascular risk; a higher income is not generally considered a risk factor for heart disease.

1) Relevant knowledge points and concepts
- Risk factors for coronary heart disease are split into nonmodifiable (age, sex, family history/genetics) and modifiable (hypertension, obesity, smoking, diabetes, dyslipidemia, physical inactivity).  
- Hypertension damages arterial walls and accelerates atherosclerosis.  
- Obesity increases cardiac workload, promotes hypertension, insulin resistance, and dyslipidemia.  
- A family history indicates inherited predisposition or shared early-life exposures that increase risk.  
- Socioeconomic status (SES) influences health: low income is typically associated with higher cardiovascular risk due to reduced access to care, higher stress, poorer diet, and more risk behaviors; higher income is generally neutral or protective.

2) Step-by-step reasoning
- Examine each option against known risk factors:
  - High blood pressure: well-established modifiable risk factor → increases heart disease risk.  
  - Family history of heart disease: well-established nonmodifiable risk factor → genetic predisposition.  
  - A higher income: socioeconomic factor; epidemiologic data show higher income usually correlates with better health outcomes and lower cardiovascular risk. It is not listed as a risk factor that increases heart disease.  
  - Obesity: well-established modifiable risk factor → promotes atherosclerosis and metabolic disease.

3) Calculations/intermediate steps
- No numerical calculations are required. The classification relies on clinical and epidemiologic evidence.

4) Why the correct answer is correct
- "A higher income" does not increase the biological or behavioral risk of heart disease in the way the other options do; instead, higher income tends to be protective through better healthcare access, healthier diet choices, and lower chronic stress exposures associated with poverty.

5) Why other options are incorrect
- High blood pressure: directly damages arteries and increases heart disease risk.  
- Family history: indicates inherited or familial risk for early heart disease.  
- Obesity: promotes hypertension, diabetes, and dyslipidemia—each a risk factor for heart disease.

6) Conclusion
Therefore, the option that is NOT a risk factor for George is "a higher income," which matches the provided correct answer.

George's doctor told him that he is at an increased risk of developing heart disease. Which of these is NOT a risk factor for George?单项选择题

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