Is My Blood Pressure Too High?

This blog is for educational purposes only and does not replace professional medical advice or diagnosis. If you have health concerns, consult an AHPRA-registered telehealth doctor or request a medical certificate online if clinically appropriate. Please note: Hola Health does not currently offer Mental Health Care Plans.

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Overview

After checking your blood pressure, you might find the numbers to be elevated, but what do they represent? High blood pressure, or hypertension, impacts approximately one in three adults in Australia and typically shows no symptoms. For this reason, it’s often referred to as the “silent killer.” Identifying and addressing it early on can help safeguard your heart, brain, and kidneys from potential long-term harm.

Key Statistics and Facts

Hypertension in Australia:

Key Statistic	The Facts	Official Source
1 in 3 Australians	Approximately 34% of Australian adults aged 18 and over (representing 6.8 million people) have high blood pressure.	Australian Institute of Health and Welfare (AIHW) – Hypertension Summary
The Awareness Gap	Significant numbers of Australians are living with “uncontrolled” hypertension, meaning they either do not know they have it or are not taking steps to manage it.	Australian Bureau of Statistics (ABS) – National Health Survey
Leading Cause of Death	High blood pressure is the leading risk factor for the global burden of disease and contributes to approximately 41% of all cardiovascular-related deaths in Australia.	Heart Foundation Australia – Hypertension Position Statement
Stroke Risk	High blood pressure is the most modifiable risk factor for stroke. It is a contributing factor in 80% of all strokes in Australia.	Stroke Foundation Australia – Risk Factors
Alcohol Contribution	Research in Australia indicates that alcohol consumption is responsible for approximately 11% of hypertension cases in Australian men.	Australian Government Department of Health – Alcohol and Health
Gender Disparity	Men are more likely to have high blood pressure (36%) than women (31%) across most age groups in Australia.	AIHW – Heart, stroke and vascular disease: Australian facts

Blood pressure levels explained

Your blood pressure reading consists of two figures:

1. Systolic (the upper number): the pressure during the heart’s contraction
2. Diastolic (the lower number): the pressure when the heart is at rest between beats

What Is ‘Normal’ Blood Pressure?

Here’s a simple breakdown of blood pressure categories:

Category	Systolic (mmHg)	Diastolic (mmHg)
Normal	Less than 120	Less than 80
Elevated	120–129	Less than 84
High-Normal	130–139	85–89
Grade 1 (Mild Hypertension)	140–159	90–99
Grade 2 (Moderate Hypertension)	160–179	100–109
Grade 3 (Severe Hypertension)	≥180	≥110

Doctors usually diagnose hypertension only after obtaining two or more high readings on different occasions. Temporary influences, such as stress, caffeine, or inadequate rest, can cause variations, making accurate measurements essential.

Common causes

Hypertension can gradually occur due to a combination of genetic, lifestyle, and environmental factors. Some prevalent causes include:

1. A family history of high blood pressure
2. Excessive salt consumption or regular intake of processed foods
3. Insufficient physical activity
4. Being overweight or having obesity
5. Smoking or drinking alcohol excessively
6. Chronic stress or anxiety
7. Pre-existing health issues, like kidney disease

Recognising these risks can empower you to implement small, lasting modifications to protect your heart.

Prepare for blood pressure test

Your everyday behaviours can influence your reading. To obtain the most precise result, follow these quick tips before a blood pressure test:

1. Empty your bladder, as a full bladder can temporarily affect your reading.
2. Avoid caffeine, smoking, and exercise for at least 30 minutes before the procedure.
3. Relax quietly for 5 minutes before the measurement to allow your body to settle.
4. Keep your feet flat and legs uncrossed while seated.
5. Refrain from speaking during the measurement; even a brief chat can elevate pressure.
6. Support your arm at heart level on a table or cushion for stability and precision.
7. These simple measures can significantly enhance the accuracy of your blood pressure reading.

What Happens If You Ignore High Blood Pressure

High blood pressure remains undetected until it causes major health issues. The prolonged pressure on your body will result in:

• Heart Attack or Stroke: The damaged arteries become either completely blocked or they experience a complete rupture.
• Heart Failure: The heart muscle develops thickening and weakness because it must operate at elevated levels.
•  Kidney Disease: The high blood pressure causes damage to the small filters which function as kidney filters.
• Vision Loss: The high blood pressure causes damage to the small blood vessels which exist in the eyes.

Alcohol and the cardiovascular system

Alcohol affects your body in several ways, and one of them is its known impact on blood pressure.

Immediate effects:

When you drink:

• Alcohol gets absorbed into your blood quickly, causing a temporary rise in heart rate and blood pressure.
• These spikes can be mild or more pronounced, depending on your intake and individual response.

Long-term impact:

If alcohol use becomes frequent or heavy:

• There is a strong connection between regular excessive drinking and long-term high blood pressure (hypertension).
• Over time, alcohol may damage your arteries, make them harder, and change the way your body regulates pressure.
• Alcohol raises heart risks by boosting triglycerides, reducing healthy HDL cholesterol, and adding extra weight, all of which can indirectly push up blood pressure.

Short-term spikes vs chronic hypertension:

• Excessive drinking may cause a temporary rise in blood pressure, even in people without hypertension.
• However, chronic or long-term heavy drinking is more likely to develop consistently elevated blood pressure over time.

In an Australian study2 from the 1980s, researchers discovered that alcohol was linked to about 11% of high blood pressure cases in men, even after accounting for factors like weight and age. Among women, the link was weaker, probably due to lower average alcohol consumption in that group.

Australian alcohol guidelines

To promote safer drinking habits, Australia follows evidence-based alcohol guidelines3.

• No more than 10 standard drinks per week for healthy adults (men and women).
•  No more than 4 standard drinks on any one day.

What counts as a “standard drink” in Australia?

A standard drink contains 10 g of pure alcohol.

• 285 mL full-strength beer (4.8%) =1.1 standard drinks
• 375 mL mid-strength beer (5%) =1.5 standard drinks
• Wine, spirits, and other drinks can vary; always check the label

These guidelines are designed to keep you safe. Drinking less decreases the likelihood of alcohol-related diseases and injuries.

Who’s more at risk?

Some groups are more susceptible to alcohol’s effects on blood pressure. Here are a few:

• People with existing heart issues: Even mild drinking may increase blood pressure or interfere with medications.
• Aboriginal and Torres Strait Islander communities: Alcohol-related risks vary in these populations, making culturally appropriate support vital.
• Older adults: As arteries become stiffer and body systems change with age, alcohol’s effect on blood pressure may increase. People with other risk factors: Additional risk factors, such as obesity, excessive salt consumption, poor nutrition, and stress, may amplify alcohol’s effects.

Tips for reducing alcohol-related BP risks

Here are some easy ways to reduce alcohol’s effect on blood pressure:

• Take alcohol-free days each week
• Choose lower-alcohol or light options
• Alternate water or soft drinks between alcoholic drinks
• Limit salt consumption, as too much salt may increase blood pressure
•  Keep your weight in a healthy range
•  Engage in regular physical activity to help keep blood pressure normal
• Manage stress and sleep well
• Seek medical advice regarding safe drinking if you have high blood pressure

If you struggle to reduce your drinking or need support, the National Alcohol and Other Drug Hotline are available to help. Additional support can be found through the Alcohol and Drug Foundation5.

Affect of high blood pressure

High blood pressure doesn’t target just one organ—it can affect different parts of the body. Here’s a quick overview of what happens inside your body when blood pressure stays too high for long.

Heart

The heart works harder to pump blood against higher pressure.

Key effects over time:

• The muscles of the left ventricle (its primary pumping chamber) thicken
• Increased risk of heart attack and heart failure
• Arrhythmias (irregular heart rhythms)
• Angina or chest pain

In Australia, heart disease continues to be one of the main causes of death. Coronary heart disease causes about one in ten deaths, and cardiovascular diseases contribute to nearly one-quarter of all deaths.

Brain

Your brain needs a steady blood flow to function well. Chronic hypertension can impair or weaken its blood vessels.

Risks include:

• Stroke or mini-strokes (TIAs)
• Cognitive decline or dementia
• Poor memory and concentration

Since brain damage can develop gradually, managing your blood pressure early is vital to preserving mental clarity later in life.

Kidneys

The kidneys filter waste from the blood through tiny, delicate vessels. They are highly sensitive to elevated pressure levels.

Consequences:

• Chronic kidney disease (CKD)
• Fluid retention and swelling
• Increased risk of dialysis or transplant in severe cases

In Australia, high blood pressure is a leading cause of kidney disease3.

Eyes

Your retina (the black of your eye) depends on fine blood vessels. High BP can damage them.

Possible impacts:

• Blurred or double vision
• Risk of vision loss over time
• Early signs can be detected during eye checks

Arteries and circulation

Constant high blood pressure puts strain on blood vessels throughout your body.

Effects:

• Atherosclerosis (hardening and narrowing)
• Peripheral artery disease (PAD)
• Poor circulation, cold hands/feet, leg pain when walking

When arteries are compromised, the chances of heart attacks, strokes, and other blood vessel problems increase.

Reproductive health and sexual function

This is less discussed, but blood flow is vital for reproductive organs.

Potential impacts:

• Erectile dysfunction (in men)
• Reduced blood flow affecting sexual health (in women, too)
• Hormonal and vascular impacts

If you are experiencing sexual difficulties, it’s essential to mention it to your GP; it can be a symptom of vascular issues.

What to do after a high blood pressure diagnosis

If your doctor confirms that you have high blood pressure, don’t worry, it’s a condition that can be managed. Most individuals begin by making small lifestyle modifications before contemplating medication.

• Engage in regular physical activity: Strive for a minimum of 30 minutes of moderate exercise each day, such as walking, swimming, or cycling. Consistent physical activity can lower your blood pressure by 5–7 mmHg.
• Reduce salt intake: Limit your salt intake to under 2,000 mg per day. Avoid processed and canned products.
• Adopt a heart-healthy diet: Concentrate on fruits, vegetables, whole grains, and low-fat dairy items. The DASH and Mediterranean diet has been proven to significantly decrease blood pressure.
  • Restrict alcohol consumption: Limit yourself to no more than two drinks per day for men and one for women. Cutting down helps your body in naturally regulating blood pressure.
• Emphasise quality sleep: Adults should aim for 7–9 hours of sleep each night. Poor or irregular sleep habits can elevate your chances of developing hypertension and associated health complications.
•  Control stress levels: Long-term stress can lead to recurrent increases in blood pressure. Try meditation, yoga, or deep breathing to reduce stress-related blood pressure spikes.
• Stop smoking: Each cigarette temporarily raises your blood pressure and heart rate. Quitting can improve your overall heart health almost immediately.
• Maintain a healthy weight: Even small weight loss can significantly reduce blood pressure and lower the strain on your heart.

If lifestyle changes aren’t enough, your doctor may recommend medication. Regular check-ups and at-home monitoring can help track your progress and keep your blood pressure in a healthy range.

How Hola Health may be able to help

Hola Health is an Australian telehealth platform that connects you with registered doctors and nurse practitioners — from the comfort of your home, at a time that suits you. Depending on your situation, a Hola Health clinician may be able to help with:

• 24/7 General medical advice via telehealth doctor consult — talk through symptoms or health concerns with a registered doctor or medical practitioner
• Medcert online — for work or personal leave, when clinically appropriate
• Referrals to specialists – or in-person services when needed
• Instant scripts online (if clinically appropriate)
• Pathology or imaging requests — when assessed as appropriate by your treating clinician

Hola Health clinicians are AHPRA-registered Doctors and medical practitioners in Australia. They will always recommend an in-person consultation, specialist referral, or emergency care if that is in your best interest.

Note: Telehealth is not suitable for all conditions. Hola Health does not replace your regular GP, specialist, or emergency services. If you are unsure whether telehealth is right for your situation, we recommend speaking with your usual healthcare provider. In emergencies, call 000.

Conclusion

High blood pressure can be silent, but its effects are serious. The good news is that with early detection, healthy habits, and regular medical guidance, it’s completely manageable. Small daily changes, like reducing salt, staying active, and managing stress, can make a big difference in protecting your heart and overall health.