The Connection Between Hypertension, Heart Disease, And Stroke

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What is the link between hypertension (high blood pressure), heart disease, and stroke?

Medically reviewed by Alana Biggers, M.D., MPH — Written by Jenna Fletcher — Updated on March 3, 2023

Link
Definitions
Symptoms
Risk factors
Treatment and prevention
Measuring blood pressure
Contacting a doctor
Summary

High blood pressure (hypertension) significantly increases the risk of heart disease or stroke. This is because high blood pressure damages the lining of the arteries. Plaque can build up as a result, causing the arteries to narrow.

This article will provide a definition of each condition and explain how they are connected.

It will also look at the symptoms, treatment options, prevention methods, and how a person can monitor their blood pressure.

How are the conditions connected?

A drawing of an artificial heart. — Viaframe/Getty Images

The Centers for Disease Control and Prevention (CDC) states that a person living with hypertension has an increased risk of developing heart disease and stroke.

High blood pressure causes damage to the artery walls. The damage can make the arteries more susceptible to the buildup of plaque, which can cause a blockage or reduced blood flow.

If the blockage occurs near the brain or heart, it can lead to either a stroke or heart attack, respectively.

According to the CDC, 7 in 10 people who experience a first heart attack and 8 in 10 people who experience a first stroke also have high blood pressure.

What are they?

Hypertension, heart disease, and stroke are three different conditions.

Hypertension

Hypertension, or high blood pressure, occurs when the pressure of blood pushing against a person’s arteries is higher than normal.

Although a person’s blood pressure can rise and fall throughout the day, chronically high blood pressure can lead to several health concerns.

Blood pressure involves two numbers: systolic and diastolic. A normal blood pressure reading is less than 120 millimeters of mercury (mmHg) systolic and less than 80 mmHg diastolic.

The following readings can indicate a person has elevated or high blood pressure:

Elevated: A systolic blood pressure of 120–129 mmHg and a diastolic blood pressure of less than 80 mmHg.
Hypertension Stage 1: A systolic blood pressure of 130–139 mmHg or a diastolic blood pressure of 80–89 mmHg.
Hypertension Stage 2: A systolic blood pressure of 140 mmHg or higher, or a diastolic blood pressure or 90 mmHg or higher.

The CDC states that high blood pressure affects 47% of adults in the United States, and only 1 in 4 of these people have their hypertension under control.

Heart disease

Heart disease refers to several different conditions that affect a person’s heart.

There are different types of heart disease, including:

coronary artery disease
heart attack
heart failure

According to the CDC, the most common form of heart disease is coronary artery disease (CAD). CAD can affect blood flow to the heart. If the heart does not get enough blood, a person can have a heart attack.

Each year, approximately 659,000 people in the U.S. die from heart disease.

Stroke

A stroke occurs when the arteries leading to the brain burst or become blocked. When the brain no longer receives oxygen-rich blood, it can cause brain cells and the arteries to die.

According to the American Heart Association, stroke is the fifth leading cause of death and the leading cause of disability in the U.S.

Symptoms

High blood pressure and heart disease may not present with any symptoms. If a person experiences symptoms of a stroke, they will require urgent medical attention.

Hypertension

According to the CDC, a person will likely never show symptoms or signs of high blood pressure. A person will need to measure their blood pressure to know if they have hypertension.

If they do have symptoms, they will likely experience the following:

early morning headaches
nosebleeds
irregular heart rhythms
vision changes
buzzing in the ears

Severe hypertension can cause:

fatigue
nausea
vomiting
confusion
anxiety
chest pain
muscle tremors

Heart disease

A person with heart disease may not experience any symptoms until they have a heart attack, heart failure, or arrhythmia.

The symptoms of these include:

Heart attack: A person may experience:
- upper back or neck pain
- nausea
- dizziness
- indigestion
- heartburn
- chest pain
- vomiting
- extreme fatigue
- shortness of breath
- discomfort in the upper chest
Arrhythmia: A person may experience a feeling of fluttering in the chest, also known as palpitations.
Heart failure: A person with heart failure may experience:
- fatigue
- shortness of breath
- swelling in the feet, legs, ankles, abdomen, or veins of the neck

Stroke

When a person experiences a stroke, they may have one or more of the following symptoms:

sudden severe headache with no known cause
sudden confusion, trouble understanding speech, or trouble speaking
sudden weakness or numbness in the arm, leg, or face, particularly on one side of the body
sudden dizziness, loss of balance, difficulty walking, or loss of coordination
sudden trouble seeing in one or both eyes

Risk factors

Each condition shares some similar risk factors, including:

a lack of exercise or activity
a diet that includes high amounts of salt
having obesity
smoking
having diabetes

Hypertension is also a risk factor for both stroke and heart disease.

Treatment and prevention

Treatment for high blood pressure can help prevent both heart disease and stroke.

A healthcare professional may recommend taking medications to lower a person’s blood pressure.

There are multiple types of medications that all have slightly different effects on a person’s blood pressure and heart. Some medications a doctor may prescribe include:

ACE inhibitors
diuretics
vasodilators
calcium channel blockers
beta-blockers
alpha-blockers
angiotensin II receptor blockers

Blood pressure medications work by:

relaxing the blood vessels
blocking nerve activity that restricts the blood vessels
helping the heart to beat with less force
helping the body to remove water, which helps lower the water and salt levels in the body

A person can also make lifestyle changes, which include:

exercising regularly, for at least 150 minutes per week
eating a healthy diet containing lots of fruits and vegetables
maintaining a healthy body mass index (BMI)
avoiding or quitting smoking
eating a low sodium diet
avoiding alcohol
managing stress, if possible
getting enough sleep

Taking the above steps may also help a person lower their risk of developing high blood pressure, heart disease, or stroke.

A person who experiences a heart attack or stroke should seek emergency medical services or call 911. If a person has had a stroke, medical professionals will prescribe medication or perform surgery to stop the bleeding and save the brain tissue.

Treatment for a heart attack will also involve medications and surgery.

Learn more
Learn more about the treatment options for heart disease, heart failure, and stroke:
heart disease
heart failure
stroke

»MORE:Get a refill for your high blood pressure medication in as little as 15 minutes with Optum Now Online Care.

Optum Now is operated by RVO Health. By clicking on this link, we may receive a commission. Learn more.

Measuring blood pressure

A person can keep track of their blood pressure at home and with regular visits to a doctor. They may also visit a pharmacy with a digital blood pressure measurement machine.

Regular blood pressure checks can help ensure treatment is working and help guide decisions on other methods that may help.

Several at-home devices can measure blood pressure. Before using a machine, a person should calibrate it with a doctor.

People who do not want or cannot get a home blood pressure cuff should visit a doctor regularly to measure their blood pressure.

Learn more
Learn more about checking blood pressure with these articles:
How to check blood pressure
5 of the best wrist blood pressure monitors
5 of the best blood pressure monitors

When to contact a doctor

People living with hypertension should regularly consult a doctor to see how medication and lifestyle changes affect their blood pressure.

A person can make adjustments in consultation with their doctor as needed based on how their blood pressure is responding.

A person should contact 911 or emergency services immediately if they experience signs or symptoms of a heart attack or stroke.

Summary

Hypertension increases a person’s risk of having a stroke or developing heart disease due to damage to the arteries.

A person can take steps to reduce their risk for any of these conditions, including regular exercise, a healthy diet, avoiding smoking, and reducing stress.

In some cases, a person may need to take blood pressure medications to help prevent high blood pressure and reduce their risk of developing heart disease or stroke.

Heart Disease
Hypertension
Stroke
Cardiovascular / Cardiology

How we reviewed this article:

SourcesMedical News Today has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical journals and associations. We only use quality, credible sources to ensure content accuracy and integrity. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

About heart disease. (2021). https://www.cdc.gov/heartdisease/about.htm
About stroke. (n.d.). https://www.stroke.org/en/about-stroke
Blood pressure medicines. (2020). https://www.cdc.gov/bloodpressure/medicines.htm
Facts about hypertension. (2021). https://www.cdc.gov/bloodpressure/facts.htm
Heart disease and stroke. (2020). https://www.cdc.gov/chronicdisease/resources/publications/factsheets/heart-disease-stroke.htm
High blood pressure symptoms and causes. (2021). https://www.cdc.gov/bloodpressure/about.htm
Prevent high blood pressure. (2020). https://www.cdc.gov/bloodpressure/prevent.htm
Stroke signs and symptoms. (2020). https://www.cdc.gov/stroke/signs_symptoms.htm
Types of blood pressure medications. (2017).https://www.heart.org/en/health-topics/high-blood-pressure/changes-you-can-make-to-manage-high-blood-pressure/types-of-blood-pressure-medications

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Medically reviewed by Alana Biggers, M.D., MPH — Written by Jenna Fletcher — Updated on March 3, 2023

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How are the conditions connected?

What are they?

Hypertension

Heart disease

Stroke

Symptoms

Hypertension

Heart disease

Stroke

Risk factors

Treatment and prevention

Measuring blood pressure

When to contact a doctor

Summary

How we reviewed this article:

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