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How to Prevent Coronary Heart Disease: Controlling the Most Common Risk Factors
Key Takeaways:
- Coronary artery disease may develop gradually as plaque builds up in the coronary arteries, reducing oxygen-rich blood flow to the heart muscle.
- Symptoms can vary and may include chest discomfort, shortness of breath, pain in the jaw or arms, nausea, vomiting, heavy sweating or discomfort mistaken for indigestion.
- Learning how to prevent coronary heart disease starts with managing modifiable risk factors such as cholesterol, blood pressure, blood sugar, weight, physical activity, smoking, vaping and stress.
Introduction
Coronary heart disease develops when the coronary arteries become narrowed, reducing the supply of oxygen-rich blood to the heart. This narrowing is usually caused by the gradual build-up of cholesterol and other substances within the artery walls.
The terms “coronary heart disease” and “coronary artery disease” are often used interchangeably to describe this condition. Although some risk factors cannot be changed, many are linked to everyday habits and long-term health markers. Understanding which factors can be monitored and managed is therefore an important part of learning how to prevent coronary heart disease.
Understanding Coronary Artery Disease
Coronary artery disease may develop gradually when fatty deposits, often called plaque, build up along the inner walls of the coronary arteries. These arteries supply oxygen-rich blood to the heart muscle. As plaque narrows the space inside the arteries, the heart may receive less blood and oxygen than it needs, especially during physical exertion, emotional stress or other situations that increase the heart’s workload.
This reduced blood flow may lead to symptoms such as chest pain, heaviness or tightness in the chest, shortness of breath, pain in the jaw or down the arms, heartburn, nausea, vomiting or heavy sweating. Chest discomfort can also feel different from person to person. It may be described as squeezing, pressure, aching, burning, numbness or fullness. As it can sometimes be mistaken for indigestion, persistent or concerning symptoms should not be ignored.
While diagnosis must be made by a doctor, public awareness matters. Understanding risk factors gives individuals in Singapore a clearer way to take action before heart problems become more serious.
Modifiable Risk Factors You Can Control
While diagnosis must be made by a doctor, public awareness matters. Understanding risk factors gives individuals in Singapore a clearer way to take action before heart problems become more serious.
1. Keep blood cholesterol in check
High blood cholesterol is a major modifiable risk factor for atherosclerosis. When fatty plaque builds up in the arteries, blood flow to the heart may become restricted. Over time, this can increase susceptibility to coronary heart disease.
One challenge is that high blood cholesterol may not cause symptoms. A person may feel generally well while their cholesterol levels remain elevated. This makes regular screening important, especially for adults with other risk factors or a family history of heart disease.
Desirable cholesterol levels may differ depending on a person’s health background and existing risks. For some individuals, lifestyle changes such as a balanced diet, regular activity and weight management may support better cholesterol control. Understanding how to prevent coronary heart disease therefore includes knowing your numbers, reviewing them regularly and discussing abnormal results with a healthcare professional.
2. Manage blood pressure over time
High blood pressure is another major risk factor for coronary heart disease and stroke. It places strain on the heart and can damage blood vessels over time. Many people with hypertension may not notice symptoms, which is why it is often described as silent.
When blood pressure is extremely high, some people may experience headaches, dizziness, or vision changes. However, relying on high blood pressure symptoms is not a safe way to know whether blood pressure is under control. Regular checks are more reliable.
Adults should have their blood pressure checked regularly. Those above 40 are commonly advised to check it at least once a year, while people with abnormal readings may need more frequent monitoring. Lifestyle measures such as weight loss, regular exercise and reducing salt intake may help normalise marginally elevated blood pressure. If these measures are not enough, medication may be required and should be continued as advised by a doctor.
3. Keep blood sugar levels within a healthy range
Blood sugar control is closely linked to heart health. Type 2 diabetes mellitus is often associated with other cardiovascular risk factors such as high blood pressure, increased total cholesterol, higher triglycerides, lower HDL or “good” cholesterol and obesity.
When blood sugar remains elevated over time, excess sugar can damage blood vessels. People with diabetes may also have a higher risk of developing coronary artery disease and stroke. For this reason, maintaining a healthy blood sugar range is an important part of reducing cardiovascular risk.
Prevention and control may include maintaining a healthy weight, eating a balanced diet, exercising regularly and following medical advice where needed. Blood sugar targets can vary between individuals, especially for those with diabetes or other health conditions, so personal guidance from a healthcare professional remains important.
4. Maintain a healthy weight
Excess body fat, especially around the waist, can increase the risk of heart disease and stroke even when no other risk factor is obvious. It may raise blood pressure, increase cholesterol and triglyceride levels, lower HDL-cholesterol and contribute to diabetes.
Weight management is not about short-term dieting. It is more useful to approach it as a long-term lifestyle pattern involving food choices, physical activity, sleep, stress management and regular monitoring. Sensibly reducing food intake and increasing physical activity may support gradual weight loss.
As body weight decreases, blood pressure, blood glucose and blood cholesterol levels may also improve. This is one reason why weight control is often discussed when explaining how to prevent coronary heart disease in practical terms.
5. Be physically active
An inactive lifestyle may increase the risk of coronary heart disease. Regular moderate physical activity supports heart and blood vessel health. It may also improve cardiovascular risk factors by helping to lower blood pressure, improve cholesterol levels, reduce stress and support weight management.
Exercise does not need to begin intensely. In fact, starting gradually may reduce the risk of injury and make the activity easier to sustain. Walking, light aerobic exercise, stretching and other manageable forms of movement can help people build consistency.
Individuals above 40 or those with known coronary artery disease should seek medical advice before starting a regular exercise programme. This is especially important if there are existing symptoms, long periods of inactivity or other health conditions.
6. Quit smoking and vaping
Smoking may increase the risk of coronary heart disease. It can reduce HDL-cholesterol, decrease the amount of oxygen delivered to the heart and increase the risk of blood clots. Smoking is also associated with a higher risk of heart attack, stroke, high blood pressure and blood vessel disease.
Vaping may also expose the body to nicotine and other chemicals that can negatively affect cardiovascular health. While some people may view vaping as less harmful than smoking, it should not be treated as risk-free for the heart.
For individuals trying to understand how to prevent coronary heart disease, avoiding tobacco and nicotine exposure is an important step. Quitting can be difficult, so people may benefit from structured support, healthcare guidance and practical strategies that make the change more manageable.
7. Manage stress and emotional strain
Blood pressure may rise momentarily when a person feels angry, frightened or under stress. While short-term stress is part of life, constant stress over prolonged periods may contribute to higher blood pressure and greater cardiovascular strain.
Stress management looks different for different people. It may involve regular movement, rest, breathing exercises, social support, better boundaries, reducing overwork or seeking help when emotional strain becomes difficult to manage.
In Singapore, busy work routines, caregiving responsibilities and financial pressures can make stress feel constant. Managing stress does not remove every challenge, but it may reduce the strain placed on the body over time.
Understand Risk Factors That Cannot Be Changed
Some risk factors cannot be changed. Age is one example, as the risk of coronary heart disease increases as people grow older. For women, menopause and the loss of oestrogen may increase the risk of coronary heart disease and stroke.
Gender can also affect risk. Men are more likely to develop coronary heart disease earlier than women, although women’s risk rises after menopause. Family history matters too. A history of premature heart disease among immediate family members may increase personal risk.
These factors do not mean that heart disease is unavoidable. Instead, they make it even more important to manage modifiable risks such as blood cholesterol, blood pressure, blood sugar, weight, physical activity, smoking and stress.
How Coronary Artery Disease Is Diagnosed
Doctors diagnose coronary artery disease by considering a person’s medical history, family history, risk factors, physical examination and test results. No single test can diagnose CAD in every situation. Depending on a person’s symptoms and risk profile, doctors may recommend one or more diagnostic tests.
This is why routine screening and medical review matter. A person who understands their risk factors is better placed to have informed conversations with healthcare professionals and take action early.
Taking Control of Heart Health in Singapore
Learning how to prevent coronary heart disease is not about making one perfect change. It is about building a clearer picture of your risk and making consistent adjustments that support long-term heart health.
The most common modifiable risk factors include high blood cholesterol, high blood pressure, high blood sugar, excess weight, physical inactivity, smoking, vaping and prolonged stress. Managing these areas may help reduce the risk of coronary heart disease, while CPR AED certification equips individuals to respond more effectively if a cardiac emergency occurs.
References:
https://www.healthhub.sg/health-conditions/coronary-artery-disease
https://www.nuhs.edu.sg/patient-care/find-a-condition/coronary-artery-disease-heart-disease
