Heart Disease and High Blood Pressure

High blood pressure (hypertension) is one of the leading causes of heart disease. 

It often has no symptoms, but over time, it can quietly damage your arteries and increase your risk of heart attack, heart failure and stroke. 

The good news: High blood pressure can be managed. Early detection and treatment can protect your heart and prevent serious complications. 

What is the connection between high blood pressure and heart disease? 

High blood pressure puts constant strain on your blood vessels. 

Over time, this pressure can: 

• Damage artery walls 
• Lead to plaque buildup (atherosclerosis) 
• Narrow and stiffen arteries 
• Reduce blood flow to the heart 

When blood flow is blocked, it can lead to a heart attack. Long-term strain can also lead to heart failure. 

What are the symptoms of high blood pressure? 

High blood pressure is often called a “silent condition” because many people have no symptoms. 

However, when blood pressure becomes dangerously high, symptoms may include: 

• Severe headaches 
• Chest pain 
• Shortness of breath 
• Vision problems 
• Fatigue or confusion 
• Irregular heartbeat 
• Blood in urine 
• A pounding sensation in the chest, neck or ears 

If you have these symptoms, seek medical care right away. 

When is high blood pressure dangerous? 

A blood pressure reading of 180/120 mm Hg or higher is a medical emergency (hypertensive crisis). 

Call 911 or seek emergency care if this reading occurs, especially with symptoms like chest pain, confusion or trouble breathing. 

Blood pressure categories 

Blood pressure is measured in millimeters of mercury (mm Hg) and includes two numbers: 

• Systolic (top number): pressure when the heart beats 
• Diastolic (bottom number): pressure between beats 

Categories include: 

• Normal blood pressure: Less than 120/80 
• Elevated blood pressure: 120–129 and below 80 
• Stage 1 hypertension: 130–139 or 80–89 
• Stage 2 hypertension: 140 or higher or 90 or higher 

Regular monitoring is key to understanding your risk. 

What causes high blood pressure? 

High blood pressure can develop over time or be caused by an underlying condition. 

Primary hypertension: 

• Develops gradually with no single known cause 

Secondary hypertension (caused by another condition): 

• Kidney disease 
• Thyroid or adrenal disorders 
• Sleep apnea 
• Certain medications (such as decongestants or birth control) 

Who is at risk for high blood pressure and heart disease? 

Your risk is higher if you: 

• Are overweight or inactive 
• Smoke or drink alcohol regularly 
• Eat a high-sodium diet 
• Have diabetes or high cholesterol 
• Have a family history of heart disease 
• Are over age 40 

How do you lower high blood pressure? 

Managing blood pressure is one of the most effective ways to prevent heart disease. 

Lifestyle changes can make a significant impact: 

• Get at least 30 minutes of physical activity most days 
• Maintain a healthy weight 
• Limit sodium and processed foods 
• Eat a heart-healthy diet rich in fruits, vegetables and whole grains 
• Reduce stress 
• Quit smoking 
• Limit alcohol and caffeine 

Medications for high blood pressure 

If lifestyle changes aren’t enough, your provider may prescribe medication. 

Common options include: 

• Diuretics 
• ACE inhibitors 
• ARBs 
• Beta-blockers 
• Calcium channel blockers 

Your treatment plan will be based on your overall health and risk factors. 

How to prevent high blood pressure 

Prevention starts with daily habits: 

• Stay active 
• Eat a balanced, low-sodium diet 
• Maintain a healthy weight 
• Manage stress 
• Avoid tobacco 
• Monitor your blood pressure regularly 

Early action can prevent long-term heart damage. 

When should you see a heart specialist? 

You should talk to a provider if you: 

• Have consistently elevated blood pressure readings 
• Have symptoms like chest pain or shortness of breath 
• Have risk factors for heart disease 
• Have been diagnosed with hypertension and need better control 

Care you can trust 

At Banner Health, our cardiology teams help you manage high blood pressure and reduce your risk of heart disease. 

We offer comprehensive care, including diagnosis, treatment and long-term heart health support. 

Schedule an appointment to take control of your blood pressure and protect your heart. 

Frequently asked questions 

Can high blood pressure cause a heart attack? 

Yes. Over time, it damages arteries and can lead to blockages that cause heart attacks. 

Can you feel high blood pressure? 

Most people cannot. That’s why regular monitoring is important. 

What is the fastest way to lower blood pressure? 

Long-term control comes from lifestyle changes and medication. If blood pressure is dangerously high, seek immediate medical care. 

Is high blood pressure reversible? 

It can often be improved or controlled with lifestyle changes and treatment. 

Bottom line 

High blood pressure is a major risk factor for heart disease, but it’s also one of the most treatable. By monitoring your numbers and taking action early, you can protect your heart and reduce your risk of serious complications.