Cardiovascular Risk and Its Factors

Cardiovascular risk refers to the likelihood that a person will develop heart disease or a stroke in the coming years. These diseases are among the leading causes of death worldwide. However, although some factors are beyond our control, many risks can be modified through healthier lifestyle choices. In this article, we will explore the concept of cardiovascular risk, the factors that contribute to it and ways to reduce it.

What Is Cardiovascular Risk?

Cardiovascular risk is an estimate of the likelihood that an individual will suffer from heart disease or a stroke in the near future. This assessment takes into account a series of factors known as risk factors. These factors can be modifiable, such as lifestyle, or non-modifiable, such as age or family history. The purpose of this assessment is to better understand an individual's behaviors and pathophysiological characteristics in order to put more appropriate preventive or monitoring measures in place.

Cardiovascular Risk Factors

Cardiovascular risk factors are numerous and can be divided into two categories: modifiable and non-modifiable.

1. Non-Modifiable Factors

Some factors are unavoidable and depend on our genetics, our age or our sex.

• Age: Cardiovascular risk increases with age, as blood vessels harden and lose their elasticity over time. Men are generally more exposed to heart disease at a younger age than women, but women catch up with men after menopause, because estrogen, which has a protective effect on the heart, declines after this period.
• Sex: Men are more likely to suffer from cardiovascular disease at a younger age than women, due to hormonal differences. However, women face an increased risk after menopause.
• Family history: Cardiovascular risk is higher in people with a family history of heart disease. If a close relative developed heart disease before age 55 (for men) or 65 (for women), this factor increases the individual's risk.

2. Modifiable Factors

Many risk factors can be reduced or controlled through changes in lifestyle, behavior, or medical treatment.

• High blood pressure (hypertension): Hypertension is one of the main risk factors for cardiovascular disease. When blood pressure is too high, it gradually damages the arteries and makes the heart less efficient. Uncontrolled hypertension can lead to a heart attack (myocardial infarction), a stroke, or heart failure.
• High cholesterol: A high cholesterol level, particularly LDL cholesterol (the “bad” cholesterol), increases the risk of plaque forming in the arteries, which can block them and reduce blood flow to the heart and brain. This raises the risk of coronary artery disease and stroke.
• Smoking: Smoking is one of the greatest modifiable risk factors for cardiovascular disease. Tobacco raises blood pressure, reduces blood oxygenation, and damages blood vessels. It speeds up the hardening of the arteries (atherosclerosis), thereby increasing the risk of heart attack and stroke.
• Diabetes: People with diabetes, especially type 2 diabetes, have an increased risk of cardiovascular disease. Diabetes can damage the arteries because of high blood sugar levels, which leads to poor blood circulation and atherosclerosis.
• Sedentary lifestyle: Physical inactivity is a major risk factor. Regular exercise helps maintain a healthy weight, lowers blood pressure, improves blood cholesterol, and strengthens the heart. Inactive people are at greater risk of developing heart disease and stroke.
• Obesity: Excess weight, particularly abdominal fat, is linked to increased cardiovascular risk. Obesity contributes to problems such as hypertension, type 2 diabetes, and an unhealthy lipid profile (high levels of cholesterol and triglycerides), all of which increase the risk of heart disease.
• Unbalanced diet: A diet high in saturated fat, refined sugar, and salt can contribute to obesity, hypertension, and higher cholesterol. A poor diet also promotes inflammation, which damages the arteries.
• Stress: Chronic stress can have a negative impact on cardiovascular health. It can lead to unhealthy behaviors, such as smoking or overeating, and cause increases in blood pressure and in levels of cortisol, a hormone linked to the stress response. This can worsen heart problems.
• Excessive alcohol consumption: Alcohol, when consumed in excess, can raise blood pressure, promote the buildup of abdominal fat, and cause heart rhythm problems, which increases the risk of cardiovascular disease.

How Can You Reduce Cardiovascular Risk?

Although some risk factors are beyond our control, there are many strategies for reducing cardiovascular risk, even for people who have several risk factors.

• Control your blood pressure: Checking your blood pressure regularly and adopting a healthy lifestyle (less salt, more exercise) helps keep it within the normal range. If necessary, a doctor can prescribe antihypertensive medication.
• Eat healthily: A diet rich in fruits, vegetables, fiber, and whole grains, and low in saturated fat and salt, is good for the heart. It is advisable to favor unsaturated fats, such as those found in nuts, oily fish, and vegetable oils.
• Exercise regularly: Physical activity, such as walking, cycling, or swimming, helps maintain a healthy weight, control blood pressure, and improve the lipid profile. Current recommendations suggest at least 150 minutes of moderate exercise per week.
• Quit smoking: Quitting smoking is one of the best decisions you can make to protect your heart health. After you quit, your cardiovascular risk gradually decreases.
• Manage stress: Learning to manage stress through relaxation techniques, such as meditation, yoga, or deep breathing, can reduce its negative impact on cardiovascular health.
• See your doctor regularly: Regular health checkups make it possible to monitor risk factors such as hypertension, diabetes, and cholesterol levels. If a problem arises, early treatment can prevent serious complications.