Understanding Cardiovascular Disease Risk Factors

Methods of Expressing Health Risk

Risk can be expressed in several ways depending on the population and timeframe:

• Total Population: For example, 6,300 deaths per year in Spain attributed to passive smoking.
• Time-Specific Periods: For example, 84 million projected cancer deaths over the next 10 years.
• Specific Demographic Sectors: For example, 5,000 women dying each year in Spain due to breast cancer.

Epidemiology and Cardiovascular Disease (CVD)

Epidemiology is the branch of medicine that studies the distribution and causes of diseases and serves as the foundation for preventive medicine. This field encompasses measures to prevent disease onset, halt progression, and avoid complications.

Primary Risk Factors for CVD

• High Blood Pressure (Hypertension): Blood pressure measures the elasticity of arterial walls. When values exceed normal ranges, it indicates poor arterial elasticity. The heart must work harder to circulate blood, which can lead to weakening and clot formation.
• High Cholesterol: While cholesterol is a lipid necessary for building cell membranes, excess plasma cholesterol deposits on artery walls, forming plaques that promote clotting.
• Smoking: Tobacco smoke contains substances that damage the lungs, blood vessels, and the heart. It increases blood pressure and forces the heart and arteries to work harder.
• Diabetes: Individuals with diabetes or poor blood sugar regulation often experience hyperglycemia. This condition accelerates the narrowing and hardening of the arteries.
• Lifestyle Factors: Sedentary behavior, obesity, and stress act as indirect risk factors by exacerbating conditions like hypertension and high cholesterol.

Non-Modifiable Risk Markers

Certain factors cannot be changed and are referred to as risk markers. These include:

• Age: Advancing age increases cardiovascular risk.
• Sex: Being male is considered a risk marker for CVD.