How Can We Prevent Heart Disease Through Lifestyle Changes?

Key Takeaways:

• To answer how we can prevent heart disease, the answer lies in developing practical daily habits.
• A heart-healthy diet should focus on more fibre, fruits, vegetables and whole grains while reducing saturated fat, trans fat, salt, sugar and deep-fried foods.
• Regular physical activity and maintaining a healthy weight can help manage risk factors such as high blood pressure, high blood cholesterol and type 2 diabetes.
• Screening is important because conditions such as high blood pressure, high blood cholesterol and diabetes may develop without obvious symptoms.

Introduction

Heart disease remains a serious health concern in Singapore, but many risk factors can be managed through daily lifestyle choices. While some risks, such as age and family history, cannot be changed, habits related to diet, exercise, weight, stress, smoking and health screening can make a difference to long-term heart health.

So, how can we prevent heart disease? For many people, reducing risk begins with simple, consistent lifestyle changes, such as eating well, staying active, managing weight, avoiding smoking and going for regular screening. These steps are essential because conditions such as high blood pressure, high blood cholesterol and diabetes may develop gradually before serious symptoms appear.

How Can We Prevent Heart Disease?

While some risk factors cannot be changed, many daily habits can still influence cardiovascular risk. In Singapore, where long working hours, convenient food choices and sedentary routines can shape everyday behaviour, prevention needs to be practical. The key pillars include eating healthier, exercising regularly, maintaining a healthy weight, managing stress, quitting smoking and going for regular screenings.

1. Eat Healthy – Make It a Habit

A heart-healthy diet is one of the most practical ways to reduce cardiovascular risk. Choosing foods that are lower in fat, cholesterol, sodium and sugar while being higher in fibre can support better blood pressure, blood cholesterol and weight control.

Improve your diet by having at least 2 servings of fruits and 3 servings of vegetables daily, with 1 serving being about 100g. Whole grains and high-fibre foods such as oats, beans, bran, wholemeal bread and wheat germ can support a healthier eating pattern.

It is also helpful to avoid deep-fried foods and use lower-fat cooking methods such as grilling, pan-frying, boiling or steaming. Choosing lean cuts of meat and limiting red meat intake can help reduce saturated fat intake. While the causes of high blood cholesterol can include diet, excess weight, lack of physical activity, genetics and certain health conditions, frequent intake of foods high in saturated fat, trans fat and cholesterol may contribute to raised blood cholesterol levels.

Making healthier food choices also means paying attention to carbohydrates, fats, salt, sugar and alcohol. Choose low-glycaemic-index foods, such as brown rice and low-sugar soya bean milk, where appropriate. Avoid trans fats found in some hard margarines, pastries, cakes and foods made with hydrogenated oils. It is also important to limit saturated fats such as butter, cream, ghee, lard and poultry skin.

When cooking, reduce the use of palm oil and coconut oil. Coconut milk can be replaced with low-fat or skimmed milk in suitable recipes. Unsaturated oils such as sunflower, soya bean, olive, peanut and canola oil are better choices when used in moderation.

Salt and monosodium glutamate should also be reduced, as high sodium intake is linked to higher blood pressure. Reducing sugar intake and avoiding sweetened drinks and fruit juices helps support weight and metabolic health. If alcohol is consumed, keep it moderate and within recommended limits.

2. Exercise Regularly

Regular exercise is important for heart health in both healthy individuals and those with existing coronary artery disease. Physical activity enhances exercise capacity and supports weight management, which can improve blood pressure control.

Adults are generally encouraged to aim for at least 150 to 300 minutes of moderate-intensity aerobic physical activity per week. Inactive adults should start gradually with lighter activities and shorter durations before increasing their frequency and intensity.

Suitable aerobic exercises include brisk walking, jogging and swimming. These activities can be adjusted according to fitness level, age and existing health conditions. Those with known heart conditions or medical concerns should seek professional advice before starting a new exercise routine.

Regular physical activity can help increase endurance and strength, improve exercise capacity, support weight loss when combined with dietary changes, lower blood pressure after exercise, relieve stress and improve sleep quality. For many people, the most sustainable exercise routine is one that fits naturally into daily life.

3. Maintain a Healthy Weight

Excess weight is associated with high blood cholesterol, high blood pressure and type 2 diabetes, all of which contribute to heart disease risk. Maintaining a healthy weight is how we can prevent heart disease.

A healthy Body Mass Index, or BMI, is commonly used as one guide for assessing weight-related health risk. In Singapore, a BMI of 18.5 to 22.9 kg/m² is generally considered healthy. BMI is calculated by dividing your weight in kilograms by the square of your height in metres.

Weight loss can also affect blood pressure. For every 10kg of weight loss, systolic blood pressure can be reduced by up to 20 mmHg, although results may vary depending on the individual and other health factors.

Body fat distribution also matters. Central obesity, sometimes described as an “apple” body shape, carries a higher cardiovascular risk than fat around the hips and thighs. A waist-to-hip ratio of less than 1 for males and less than 0.8 for females is generally preferred.

Meanwhile, individuals with central obesity are at 3 times higher risk of heart disease, even if their weight is otherwise acceptable.

4. Manage Your Stress

Stress can affect heart health indirectly by contributing to high blood pressure, raised blood cholesterol levels, overeating and smoking. While stress is part of daily life, long-term unmanaged stress can encourage habits that increase cardiovascular risk.

Practical stress management can begin with simple routines. Exercise regularly, take a short walk when stress builds and allow yourself quiet moments during the day. These small habits can help the body and mind recover from daily pressure.

Sleep is also important. Sleeping too little or too much has been associated with an increased risk of coronary artery disease. The brief recommends aiming for 6 to 8 hours of sleep each day, where possible.

Stress management should not depend on smoking, excessive alcohol or overeating. These coping methods may provide short-term relief but can worsen long-term health risks. Healthier coping habits help protect both emotional well-being and heart health.

5. Stop Smoking/Vaping

Smoking/vaping is a major risk factor for heart disease, even at lower levels of cigarette use. HealthXchange notes that smokers are 3 times more likely to have a heart attack than to develop lung cancer, while smoking up to 5 cigarettes daily can increase heart attack risk by 40% and may cancel the protective effects of medication.

This is because smoking/vaping directly affects the heart and blood vessels, increasing the workload on the cardiovascular system even before obvious symptoms appear. Nicotine causes blood vessels to constrict, making the heart pump harder and faster. It also damages the lining of blood vessels, encouraging fat and calcium deposits to build up.

Besides, carbon monoxide reduces oxygen supply in the blood, while lung irritation can place further strain on the heart. In the long run, these effects increase the risk of serious cardiovascular problems.

People who smoke can take gradual steps to quit:

• Reducing cigarettes over 2 to 3 weeks before stopping
• Changing routines associated with smoking
• Replacing cigarettes with sugar-free lozenges or low-calorie sweets
• Seeking medical advice
• Seeking smoking cessation support, including nicotine patches or prescribed medication, where appropriate

6. Know Your Risk and Go for Screening

Regular screening helps identify risk factors early, before complications develop. This is important because high blood pressure, high blood cholesterol and diabetes can lead to heart disease even when a person feels well.

Heart disease screening may include checks for cholesterol, blood pressure and family history. These results help individuals understand their personal risk and take preventive action earlier.

People should also understand that high blood pressure symptoms may not always be obvious. Some individuals may not feel unwell even when their blood pressure is elevated. This is why regular checks are important, especially for adults with a family history, excess weight, diabetes, high blood cholesterol or other risk factors.

Managing chronic conditions through lifestyle changes and, when necessary, medication can significantly reduce risk. If results show raised blood pressure, high blood cholesterol or diabetes, follow-up with a healthcare professional is important for proper management.

Protecting Your Heart in Singapore

Heart disease and stroke are serious conditions, but many risk factors can be reduced through healthier daily habits and regular screening. While some risks, such as age, genetics and family history, cannot be changed, informed lifestyle choices can help lower overall cardiovascular risk and support long-term heart health.

So, how can we prevent heart disease? The answer lies in consistent actions. Lifestyle changes and regular screening help reduce cardiovascular risk by addressing factors such as diet, weight, blood pressure, blood cholesterol, smoking/vaping and physical inactivity.

The Singapore Heart Foundation supports heart disease prevention through public education, community outreach and practical heart-health resources. After learning about lifestyle changes, Singaporeans can continue by joining heart-health awareness initiatives or exploring reliable education materials to support better daily decisions.