Why cardiovascular risk should be assessed early

July Is Heart and Vascular Health Month

Cardiovascular diseases remain one of the leading causes of poor health worldwide. They include not only heart attacks and strokes, but also arterial hypertension, atherosclerosis, rhythm disorders, heart failure, vascular damage related to diabetes, valve diseases, thrombosis and other conditions. Many of these diseases do not appear suddenly. They often develop gradually over many years.

The heart and blood vessels work as a single system. The heart pumps blood, while the vessels deliver oxygen and nutrients to the organs. Arteries, veins and capillaries constantly adapt to blood pressure, physical activity, metabolism and the overall condition of the body. If blood vessels become stiff, narrowed or damaged, the heart has to work harder. If the heart becomes less efficient, organs may receive less blood and oxygen.

The main challenge with cardiovascular diseases is that risk often accumulates silently. A person may not feel high blood pressure, may not notice elevated cholesterol, and may have no signs of early atherosclerosis or gradual changes in heart function. This is why prevention and early diagnosis are important not only for people with symptoms, but also for those who feel well but have risk factors.

Why the heart and blood vessels should not be viewed separately

The heart depends on the condition of the blood vessels. If the arteries are elastic and allow blood to flow freely, it is easier for the heart to maintain normal circulation. If the vessels are damaged by atherosclerosis, high blood pressure, diabetes, smoking or inflammation, resistance to blood flow increases and the blood supply to organs may worsen.

Blood vessels also depend on how well the heart works. In heart failure, blood circulation may become less efficient, leading to fluid retention, swelling, shortness of breath and reduced tolerance of physical activity. In rhythm disorders, the heart may pump blood irregularly or less effectively, which can affect the brain, kidneys, muscles and other organs.

The cardiovascular system is especially closely connected with the kidneys, metabolism and nervous regulation. High blood pressure damages the kidney vessels, while reduced kidney function can maintain or worsen hypertension. Diabetes damages vessels in the heart, brain, kidneys and retina. Obesity and insulin resistance increase the workload on the heart and raise vascular risk. This is why heart health is not only a cardiology issue, but an important part of overall health.

Main factors that increase cardiovascular risk

Cardiovascular risk is shaped by many factors. Some of them cannot be changed, such as age, family history, previous diseases and genetic predisposition. But many risk factors can be controlled or improved.

The main risk factors include arterial hypertension, elevated cholesterol, diabetes, smoking, obesity, low physical activity, chronic stress, sleep problems, excessive salt intake, an unbalanced diet and excessive alcohol consumption. The more factors a person has at the same time, the higher the overall risk.

It is important to understand that each risk factor does not act in isolation. For example, moderately elevated blood pressure in a person without other health problems has a different meaning than the same blood pressure in someone with diabetes, smoking, obesity and high cholesterol. This is why modern prevention looks not only at individual numbers, but also at the whole picture.

Family history also matters. If close relatives had early heart attacks, strokes, severe atherosclerosis or sudden cardiac death, the risk may be higher. However, heredity does not mean that disease is inevitable. It means that prevention should be taken more seriously and started earlier.

Why blood pressure should be monitored even without symptoms

Arterial hypertension often does not cause pain or noticeable discomfort. Many people live with high blood pressure for years and discover it by chance. At the same time, the blood vessels, heart, brain, kidneys and retina may already be under strain and gradually damaged.

High blood pressure increases the workload on the heart. The heart muscle has to work harder to push blood through the vessels. Over time, this can lead to thickening of the left ventricular wall, reduced elasticity of the heart, impaired relaxation and the development of heart failure.

Blood vessels are also affected by hypertension. Their walls become stiffer, more easily damaged and more prone to atherosclerosis. This increases the risk of stroke, heart attack, chronic kidney disease and damage to the small vessels of the eyes.

This is why blood pressure should be measured, not judged by how a person feels. The absence of headache, palpitations or weakness does not mean that blood pressure is normal. Regular measurement helps detect the problem before complications appear.

Cholesterol and atherosclerosis: a hidden process in the arteries

Cholesterol is necessary for the body, but abnormal lipid metabolism can contribute to atherosclerosis. In atherosclerosis, plaques gradually form inside the walls of arteries. These plaques can narrow the vessel, impair blood flow and increase the risk of thrombosis.

This process may not cause symptoms for a long time. A person may feel completely normal while blood flow remains sufficient. But if a plaque becomes unstable or a blood clot forms on its surface, an acute event can occur, such as a heart attack, stroke or sudden ischemia in another area.

Low-density lipoprotein cholesterol, often called “bad” cholesterol, is especially important. However, lipid assessment is not limited to one number. A doctor may consider total cholesterol, LDL, HDL, triglycerides, family history, age, blood pressure, diabetes, smoking and existing cardiovascular disease.

Atherosclerosis is not only a problem of old age. It can begin long before symptoms appear. This is why lipid profile assessment is important for prevention, especially if other risk factors are present.

Diabetes, weight and metabolism

Diabetes significantly increases cardiovascular risk. Elevated glucose damages blood vessels, promotes inflammation, disrupts endothelial function and accelerates atherosclerosis. In diabetes, the vessels of the heart, brain, kidneys and lower limbs are affected more often.

Insulin resistance, obesity and metabolic syndrome are also linked to higher risk. Excess body weight, especially visceral fat around the abdomen, affects blood pressure, lipids, blood sugar, inflammation and the workload of the heart.

It is important to understand that cardiovascular risk rises not only after diabetes has already been diagnosed. Prediabetes, insulin resistance, abdominal obesity and elevated triglycerides can also be signs of metabolic risk.

This is why cardiovascular prevention includes not only control of blood pressure and cholesterol, but also assessment of glucose, glycated hemoglobin, body weight, waist circumference, diet and physical activity.

Symptoms that require attention

Some cardiovascular symptoms should not be ignored. Pain, pressure, burning or tightness in the chest, especially during physical activity or spreading to the arm, back, neck, jaw or upper abdomen, may be a sign of reduced blood flow to the heart. Shortness of breath, marked weakness, cold sweat, nausea and fear may also accompany acute heart conditions.

Symptoms of stroke may include sudden weakness or numbness of the face, arm or leg, especially on one side of the body, speech problems, facial asymmetry, sudden vision changes, severe dizziness, loss of coordination or a sudden intense headache. With these signs, the first hours are especially important.

Rhythm disorders may cause palpitations, skipped beats, a feeling that the heart “stops,” weakness, dizziness, near-fainting or loss of consciousness. Sometimes an arrhythmia may be barely noticeable, but still increase the risk of complications.

Shortness of breath, swelling of the legs, rapid fatigue, inability to tolerate usual activity, nighttime breathlessness or the need to sleep with the head elevated may point to heart failure or another heart condition. These symptoms require assessment, especially if they are getting worse.

How the heart and blood vessels are assessed

A basic cardiovascular risk assessment often begins with simple things: blood pressure measurement, body weight assessment, waist circumference, family history, lifestyle and symptoms. These data already help determine whether risk factors are present.

Laboratory tests may include a lipid profile, glucose, glycated hemoglobin, creatinine, estimated glomerular filtration rate, electrolytes, thyroid function tests when indicated and other markers. They help assess metabolism, kidney function and factors that influence the heart.

An ECG helps assess the electrical activity of the heart, rhythm, conduction and some signs of overload or ischemia. Echocardiography shows the structure of the heart, chamber size, valve function, contractility and signs of heart failure. Holter monitoring helps detect rhythm disorders that may not appear on a standard ECG.

In some cases, stress tests, vascular ultrasound, coronary CT angiography, cardiac MRI, cardiac biomarkers and other methods may be used. The choice depends on symptoms, risk level and the suspected diagnosis.

The role of lifestyle in protecting the heart and blood vessels

Lifestyle is not a secondary part of prevention. It directly affects blood pressure, cholesterol, blood sugar, body weight, vascular inflammation, sleep and physical endurance. Even when medication is needed, daily habits remain an important part of protecting the heart and vessels.

Salt affects blood pressure and fluid retention, especially in people with hypertension, heart failure, chronic kidney disease and increased sensitivity to sodium. A significant part of salt intake often comes not from the salt shaker, but from ready-made foods, sauces, processed meats, cheeses, fast food and snacks.

Physical activity helps lower blood pressure, improve insulin sensitivity, control body weight, support vascular function and reduce overall risk. It does not have to mean professional sport. Regular movement appropriate to a person’s condition is what matters most.

Sleep and stress also affect the cardiovascular system. Chronic sleep deprivation, sleep apnea, constant tension, anxiety and lack of recovery can raise blood pressure, worsen metabolic health and make weight control more difficult.

What this article series will cover

During Heart and Vascular Health Month, it is important to discuss the main topics that patients commonly face. This series will cover arterial hypertension, cholesterol and atherosclerosis, myocardial infarction, stroke, rhythm disorders, heart failure, the connection between diabetes and the heart, modern heart examinations, lifestyle and cardiovascular prevention.

Each of these topics reflects one general principle: cardiovascular diseases often develop long before an acute event occurs. A heart attack, stroke or heart failure may be the result of years of accumulated risk factors, such as high blood pressure, high cholesterol, smoking, diabetes, obesity, low physical activity and hereditary predisposition.

July Is Heart and Vascular Health Month is an opportunity to speak not only about treating complications, but also about early risk assessment. The heart and blood vessels need attention before severe chest pain, shortness of breath or sudden deterioration appears. Regular blood pressure measurement, control of lipids and blood sugar, weight assessment, smoking cessation, movement, sleep and timely medical evaluation help detect problems earlier and reduce the risk of serious consequences.