Heart Disease Risk Estimator
This calculator provides a simplified estimate of your general heart disease risk based on common factors. It is for informational purposes only and should not replace professional medical advice.
.heart-risk-calculator-container {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f9f9f9;
padding: 25px;
border-radius: 10px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
max-width: 700px;
margin: 30px auto;
border: 1px solid #e0e0e0;
}
.heart-risk-calculator-container h2 {
color: #2c3e50;
text-align: center;
margin-bottom: 20px;
font-size: 1.8em;
}
.heart-risk-calculator-container p {
color: #555;
text-align: center;
margin-bottom: 25px;
line-height: 1.6;
}
.calculator-form .form-group {
margin-bottom: 18px;
display: flex;
flex-direction: column;
}
.calculator-form label {
font-weight: bold;
margin-bottom: 8px;
color: #34495e;
font-size: 0.95em;
}
.calculator-form input[type="number"],
.calculator-form select {
width: 100%;
padding: 12px;
border: 1px solid #ccc;
border-radius: 6px;
box-sizing: border-box;
font-size: 1em;
color: #333;
transition: border-color 0.3s ease;
}
.calculator-form input[type="number"]:focus,
.calculator-form select:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}
.calculator-form .radio-group {
display: flex;
gap: 20px;
align-items: center;
margin-top: 5px;
}
.calculator-form .radio-group input[type="radio"] {
margin-right: 5px;
transform: scale(1.1);
}
.calculator-form .radio-group label {
font-weight: normal;
margin-bottom: 0;
color: #555;
}
.calculator-form .checkbox-group {
flex-direction: row;
align-items: center;
}
.calculator-form .checkbox-group input[type="checkbox"] {
margin-right: 10px;
transform: scale(1.2);
}
.calculator-form .checkbox-group label {
margin-bottom: 0;
}
.heart-risk-calculator-container button {
background-color: #007bff;
color: white;
padding: 14px 25px;
border: none;
border-radius: 6px;
cursor: pointer;
font-size: 1.1em;
font-weight: bold;
width: 100%;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 20px;
}
.heart-risk-calculator-container button:hover {
background-color: #0056b3;
transform: translateY(-2px);
}
.calculator-result {
margin-top: 30px;
padding: 20px;
background-color: #e9f7ef;
border: 1px solid #d4edda;
border-radius: 8px;
font-size: 1.1em;
color: #155724;
line-height: 1.6;
text-align: center;
}
.calculator-result strong {
color: #0a3622;
}
.calculator-result.error {
background-color: #f8d7da;
border-color: #f5c6cb;
color: #721c24;
}
/* Responsive adjustments */
@media (max-width: 600px) {
.heart-risk-calculator-container {
padding: 15px;
margin: 20px auto;
}
.heart-risk-calculator-container h2 {
font-size: 1.5em;
}
.calculator-form .radio-group {
flex-direction: column;
align-items: flex-start;
gap: 10px;
}
}
function calculateHeartRisk() {
var age = parseFloat(document.getElementById("age").value);
var gender = document.querySelector('input[name="gender"]:checked').value;
var smokingStatus = document.getElementById("smokingStatus").value;
var systolicBP = parseFloat(document.getElementById("systolicBP").value);
var hasDiabetes = document.getElementById("hasDiabetes").checked;
var hasHighCholesterol = document.getElementById("hasHighCholesterol").checked;
var familyHistory = document.getElementById("familyHistory").checked;
var resultDiv = document.getElementById("heartRiskResult");
resultDiv.className = "calculator-result"; // Reset class
// Input validation
if (isNaN(age) || age 120) {
resultDiv.innerHTML = "
Error: Please enter a valid age between 18 and 120.";
resultDiv.classList.add("error");
return;
}
if (isNaN(systolicBP) || systolicBP 250) {
resultDiv.innerHTML = "
Error: Please enter a valid Systolic Blood Pressure between 70 and 250 mmHg.";
resultDiv.classList.add("error");
return;
}
var riskScore = 0;
// Age points
if (age >= 70) {
riskScore += 4;
} else if (age >= 60) {
riskScore += 3;
} else if (age >= 50) {
riskScore += 2;
} else if (age >= 40) {
riskScore += 1;
}
// Gender points
if (gender === "male") {
riskScore += 1;
}
// Smoking Status points
if (smokingStatus === "current") {
riskScore += 2;
} else if (smokingStatus === "former") {
riskScore += 1;
}
// Systolic Blood Pressure points
if (systolicBP >= 160) {
riskScore += 4;
} else if (systolicBP >= 140) {
riskScore += 3;
} else if (systolicBP >= 130) {
riskScore += 2;
} else if (systolicBP >= 120) {
riskScore += 1;
}
// Diabetes points
if (hasDiabetes) {
riskScore += 2;
}
// High Cholesterol points
if (hasHighCholesterol) {
riskScore += 1;
}
// Family History points
if (familyHistory) {
riskScore += 1;
}
var riskCategory = "";
var riskDescription = "";
if (riskScore <= 3) {
riskCategory = "Low Risk";
riskDescription = "Your estimated risk of heart disease based on these factors appears low. Continue to maintain a healthy lifestyle and regular check-ups.";
} else if (riskScore <= 6) {
riskCategory = "Moderate Risk";
riskDescription = "Your estimated risk of heart disease appears moderate. Consider discussing your risk factors with a healthcare professional and explore lifestyle changes to reduce risk.";
} else {
riskCategory = "High Risk";
riskDescription = "Your estimated risk of heart disease appears high. It is strongly recommended to consult with a doctor to discuss these risk factors and develop a personalized prevention plan.";
resultDiv.classList.add("error"); // Use error styling for high risk
}
resultDiv.innerHTML = "
Your Estimated Heart Disease Risk: " + riskCategory + "
" +
"" + riskDescription + "" +
"
(Total Risk Score: " + riskScore + " points)" +
"
Disclaimer: This calculator provides a general estimate and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider for any health concerns.";
}
Understanding Heart Disease Risk
Heart disease, including conditions like coronary artery disease, heart attack, and stroke, remains a leading cause of death worldwide. While some risk factors are beyond our control, many can be managed or modified through lifestyle changes and medical intervention. Understanding your personal risk factors is the first step towards prevention and maintaining a healthy heart.
Key Risk Factors for Heart Disease:
- Age: The risk of heart disease increases with age.
- Gender: Men generally have a higher risk of heart disease than women, though women's risk increases significantly after menopause.
- Smoking: Smoking damages blood vessels, reduces oxygen to the heart, and significantly increases the risk of heart attack and stroke.
- High Blood Pressure (Hypertension): Uncontrolled high blood pressure can harden and narrow your arteries, reducing blood flow to your heart.
- High Cholesterol: High levels of LDL ("bad") cholesterol can lead to plaque buildup in arteries (atherosclerosis), while low HDL ("good") cholesterol can also be a risk.
- Diabetes: High blood sugar levels from diabetes can damage blood vessels and nerves that control your heart.
- Family History: A family history of early heart disease (e.g., a father or brother diagnosed before age 55, or a mother or sister before age 65) suggests a genetic predisposition.
- Obesity/Overweight: Excess weight, especially around the abdomen, increases the risk of high blood pressure, high cholesterol, and diabetes.
- Physical Inactivity: Lack of exercise contributes to many risk factors, including obesity, high blood pressure, and high cholesterol.
- Unhealthy Diet: Diets high in saturated and trans fats, sodium, and sugar can contribute to heart disease.
- Stress: Chronic stress can contribute to high blood pressure and other risk factors.
How This Calculator Works
This calculator uses a simplified scoring system based on several common and well-established risk factors for heart disease. Each factor is assigned a certain number of points, and your total score is used to categorize your estimated risk level (Low, Moderate, or High). It's important to remember that this is a general estimation and not a comprehensive medical assessment.
Interpreting Your Results
- Low Risk: While your current risk factors suggest a lower likelihood of heart disease, maintaining a heart-healthy lifestyle is crucial for long-term well-being.
- Moderate Risk: A moderate risk indicates that you have several factors that could increase your chances of developing heart disease. This is an excellent opportunity to discuss these factors with your doctor and consider proactive lifestyle changes.
- High Risk: A high-risk assessment suggests that you have significant risk factors that warrant immediate attention. Consulting with a healthcare professional is highly recommended to develop a personalized plan for risk reduction and monitoring.
Steps to Reduce Your Heart Disease Risk
Regardless of your current risk level, there are many actions you can take to promote heart health:
- Quit Smoking: This is one of the most impactful steps you can take.
- Manage Blood Pressure: Monitor regularly and follow your doctor's advice for diet, exercise, and medication if needed.
- Control Cholesterol: Eat a diet low in saturated and trans fats, and discuss medication options with your doctor if necessary.
- Manage Diabetes: Keep blood sugar levels under control through diet, exercise, and medication.
- Eat a Heart-Healthy Diet: Focus on fruits, vegetables, whole grains, lean proteins, and healthy fats. Limit processed foods, sugary drinks, and excessive sodium.
- Be Physically Active: Aim for at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity exercise per week.
- Maintain a Healthy Weight: Achieve and maintain a healthy body mass index (BMI).
- Reduce Stress: Practice stress-reducing techniques like meditation, yoga, or spending time in nature.
- Regular Check-ups: Visit your doctor regularly for screenings and to discuss your heart health.
Remember, early detection and proactive management of risk factors are key to preventing heart disease. Always consult with a healthcare professional for personalized medical advice.