High blood pressure, or hypertension, is one of the most common health concerns in adults. Yet many people do not realize that there are different types of hypertension.
Some people develop high blood pressure gradually over many years. Others have hypertension because of kidney disease, hormonal problems, medications, or another health condition. In some cases, only the upper blood pressure number is elevated. In others, blood pressure remains high despite several medications.
Understanding the hypertension types matters because the cause can affect how the condition is investigated and treated.
As a licensed Naturopathic Doctor and primary care healthcare provider with nearly 20 years of clinical experience, I have observed that blood pressure numbers only tell us part of the story. As a doctor, I want to understand why the blood pressure is high, how long it has been elevated & what other cardiovascular risks are present.
High blood pressure usually causes no symptoms. Yet over time, it can damage the heart, brain, blood vessels, kidneys & other organs.
What is blood pressure?
Blood pressure measures the force of blood pushing against the walls of your arteries. A reading contains two numbers.
For example: 130/80 mmHg
The first number is the systolic blood pressure which measures pressure when the heart contracts. And t he second number is the diastolic blood pressure which measures pressure while the heart relaxes between beats. And both numbers are important.
What are the main types of hypertension?
There is no single medical system that officially defines exactly 4 types of hypertension.
However, four clinically useful forms are:
- Primary hypertension
- Secondary hypertension
- Isolated systolic hypertension
- Resistant hypertension
These should not be confused with the high blood pressure categories used to describe how elevated a blood pressure reading is. Let's look at each type.
1. Primary hypertension
Primary hypertension is also called essential hypertension. It is the most common type of high blood pressure. There is no single identifiable disease causing it.
Instead, it tends to develop gradually due to a combination of:
- Genetics
- Aging
- Excess sodium intake
- Low physical activity
- Excess body weight
- Poor sleep
- Alcohol
- Chronic stress
- Metabolic health
- Other lifestyle and environmental factors
Through my education as a Naturopathic Doctor, I learned how each of these factors affects cardiovascular health. In practical clinical experience, I have observed that primary hypertension usually reflects several factors working together rather than one obvious cause. This is why treatment often requires more than simply telling someone to "eat less salt."
2. Secondary hypertension
Secondary hypertension occurs when high blood pressure is caused by another condition or substance.
Possible causes include:
- Kidney disease
- Renal artery disease
- Sleep apnea
- Thyroid disorders
- Adrenal gland disorders
- Certain medications
- Some hormonal conditions
- Excess alcohol
- Certain recreational drugs
The American Heart Association notes that secondary hypertension represents a smaller proportion of cases and may improve when the underlying cause is corrected. As per my observation, secondary hypertension becomes especially important to consider when blood pressure rises suddenly, appears at an unusual age, becomes very difficult to control, or is much higher than expected.
High blood pressure usually causes no symptoms, which is why regular blood pressure measurements and home monitoring are important for detecting hypertension early.
3. Isolated systolic hypertension
Isolated systolic hypertension occurs when the upper number is elevated while the lower number remains relatively normal. For example: 155/75 mmHg
This pattern becomes more common as we age because arteries naturally become less flexible. When it comes to seniors, systolic blood pressure deserves particular attention. It can increase as large arteries stiffen over time. Isolated systolic hypertension should not be dismissed simply because the diastolic number looks good. Elevated systolic pressure still increases cardiovascular risk.
4. Resistant hypertension
Resistant hypertension refers to high blood pressure that remains above target despite treatment with several appropriate blood pressure medications, typically including a diuretic.
Possible reasons include:
- Undiagnosed secondary hypertension
- Sleep apnea
- Kidney disease
- Excess sodium
- Medication interactions
- Alcohol
- Inconsistent medication use
- Incorrect blood pressure measurement
Sometimes apparent resistant hypertension is actually caused by "white coat hypertension," poor measurement technique, or blood pressure that is much lower outside the medical office. In my opinion, resistant hypertension is a good example of why we need to understand the patient deeply rather than simply adding medication without investigating why the blood pressure remains high.
Other types of high blood pressure
There are several other types of high blood pressure worth understanding.
White coat hypertension
Blood pressure is elevated in a medical office but normal at home. Anxiety, rushing to an appointment, caffeine, or the clinical setting itself may temporarily raise blood pressure. Home blood pressure monitoring or 24-hour ambulatory monitoring can help identify this pattern.
Masked hypertension
Masked hypertension is the opposite. Blood pressure appears normal in the medical office but is elevated at home or during daily life. This is important because someone may incorrectly believe their blood pressure is healthy.
Gestational hypertension
High blood pressure can develop during pregnancy. Pregnancy-related hypertension requires careful assessment because conditions such as preeclampsia can become serious for both mother and baby.
Hypertensive emergency
Very high blood pressure accompanied by signs of acute organ damage is a medical emergency.
Symptoms may include:
- Chest pain
- Severe shortness of breath
- Weakness or numbness
- Difficulty speaking
- Confusion
- Vision changes
The American Heart Association considers blood pressure above 180/120 mmHg particularly concerning, especially when these symptoms are present.
High blood pressure categories
The terminology used for classes of hypertension and blood pressure stages can vary somewhat between guidelines. The 2025 Hypertension Canada guideline defines hypertension in adults as blood pressure of 130/80 mmHg or higher when measured correctly with a validated device under optimal conditions. The current American Heart Association categories are:
|
Blood Pressure Category |
Systolic |
Diastolic |
|---|---|---|
|
Normal |
Less than 120 |
Less than 80 |
|
Elevated |
120–129 |
Less than 80 |
|
Stage 1 hypertension |
130–139 |
80–89 |
|
Stage 2 hypertension |
140 or higher |
90 or higher |
|
Severe hypertension |
Above 180 |
And/or above 120 |
These types of blood pressure readings help describe severity. They do not tell us whether someone has primary or secondary hypertension.
One blood pressure reading is not enough
Blood pressure changes throughout the day.
It may rise temporarily because of:
- Exercise
- Stress
- Pain
- Caffeine
- Smoking
- Poor sleep
- A full bladder
- Talking during the measurement
For this reason, hypertension is usually confirmed using repeated measurements. Home monitoring can be particularly useful. Hypertension Canada currently considers home readings of 135/85 mmHg or higher elevated when measured correctly. Sometimes as a doctor, we need to put ourselves in the person's shoes. Seeing one high number can create anxiety, which can raise the next reading even further. Looking at a series of properly collected measurements gives us much better information.
Can healthy people develop hypertension?
Yes. Someone can:
- Exercise regularly
- Maintain a healthy weight
- Eat well
- Avoid smoking
- Drink little alcohol
and still develop hypertension. Genetics, aging, kidney function, sleep apnea, hormonal disorders & other factors can all contribute. This is why blood pressure screening remains important even for people who consider themselves very healthy. Not all patients are equal based on age and genetics because cardiovascular risk develops from more than lifestyle alone.
Why identifying the type matters
Knowing the type of hypertension can change the treatment plan.
For example, someone with primary hypertension may benefit greatly from:
- Dietary changes
- Regular exercise
- Weight management
- Improving sleep
- Reducing excessive sodium
- Limiting alcohol
- Medication when indicated
Someone with secondary hypertension may also need treatment for:
- Kidney disease
- Sleep apnea
- Thyroid disease
- An adrenal disorder
- A medication-related cause
Treating the underlying problem may significantly improve blood pressure.
The 2025 Hypertension Canada guideline defines hypertension as blood pressure of 130/80 mmHg or higher when measured correctly & lifestyle changes are recommended for all adults with hypertension.
The naturopathic approach to hypertension
As a Naturopathic Doctor, I view hypertension as both a number and a cardiovascular risk signal.
A health assessment may include repeated blood pressure readings, family history, nutrition, physical activity, sleep quality, kidney function, blood sugar, cholesterol & thyroid function.
- Repeated blood pressure readings
- Home blood pressure monitoring
- Family history
- Nutrition
- Sodium and potassium intake
- Physical activity
- Sleep quality
- Stress
- Alcohol intake
- Body composition
- Kidney function
- Blood sugar
- Cholesterol
- Thyroid function
- Medications
In some individuals, investigation for secondary causes may also be appropriate. Lifestyle treatment is recommended for adults with hypertension, but medication should not be delayed when cardiovascular risk or blood pressure levels indicate that it is needed. Hypertension Canada's 2025 guideline recommends healthy lifestyle changes for all adults with hypertension and drug treatment for adults at or above 140/90 mmHg, as well as selected higher-risk people with systolic pressure between 130 and 139.
In my opinion, natural and conventional treatment should not be viewed as competing approaches. The goal is to lower cardiovascular risk safely and effectively.
Final thoughts
There are several different types of hypertension & understanding the difference can help guide treatment. Primary hypertension is the most common. Secondary hypertension results from an identifiable underlying cause. Isolated systolic hypertension is particularly common with aging, while resistant hypertension requires further investigation when blood pressure remains high despite treatment.
Through nearly two decades of clinical practice, I have observed that two people with the same blood pressure reading may have very different reasons for developing hypertension. As a doctor, I believe the most useful question is not simply, "How high is the blood pressure?" We also need to ask, "Why is it high, what cardiovascular risks are present & what can we do to lower those risks?" That approach allows us to treat hypertension as part of the whole person's health rather than simply treating a number.
Hypertension can have different causes, patterns, and health considerations, which is why personalized guidance matters. At Aspire Natural Health, our naturopathic team may help you explore lifestyle, nutrition, stress, sleep and wellness factors that may support your blood pressure goals alongside regular medical care. Book a consultation to better understand your health and next steps.
FAQ’s
How do I know what type of hypertension I have?
A healthcare provider will consider your blood pressure pattern, age, medical history, medications, family history, physical examination & laboratory results. Home blood pressure monitoring may help identify white coat or masked hypertension. If blood pressure is unusually high, develops suddenly, starts at a young age, or is difficult to control, further investigation for secondary hypertension may be needed.
Which is more alarming, high systolic or diastolic?
Both matter. However, systolic blood pressure becomes particularly important as people get older and is a strong predictor of cardiovascular risk. High diastolic blood pressure is also important, especially in younger adults. Rather than deciding that one number is "safe," both should be assessed in the context of your age and overall cardiovascular health.
What is the difference between type 1 and type 2 hypertension?
Type 1 and type 2 hypertension are not standard medical classifications. This terminology is sometimes confused with primary and secondary hypertension. Primary hypertension develops without one identifiable underlying disease and accounts for most cases. Secondary hypertension occurs because of another condition, medication, or substance. The distinction matters because treating the cause of secondary hypertension may substantially improve blood pressure.
Can a very healthy person have high blood pressure?
Yes. A healthy diet, regular exercise & a healthy weight significantly reduce risk, but they cannot eliminate it. Genetics, aging, sleep apnea, kidney disease, hormonal conditions & other factors may cause hypertension even in people with excellent lifestyles.
Can I live a long life with stage 2 hypertension?
Yes, especially when it is identified and well controlled. Stage 2 hypertension increases the risk of heart attack, stroke, kidney disease, heart failure & other complications if it remains untreated. However, treatment can greatly reduce that risk. The key is not simply having had a stage 2 reading. What matters is how effectively your blood pressure and other cardiovascular risks are managed over time.
Can stage 2 hypertension go back to normal?
Yes, in some people. Significant lifestyle changes, weight loss when appropriate, improved fitness, reduced alcohol intake, better sleep, treatment of sleep apnea & correcting an underlying secondary cause can substantially lower blood pressure. Many people will still require medication, particularly when blood pressure is significantly elevated or cardiovascular risk is high. Needing medication does not mean lifestyle treatment has failed. The two approaches often work best together.
