Blood Pressure Chart
What is the normal blood pressure range?

Use the Blood Pressure Chart to assess if you have a healthy blood pressure (BP). Various hypertension definitions are provided.

Blood Pressure Table

Blood Pressure Classification

Systolic BP (mmHg)

Diastolic BP (mmHg)


Normal blood pressure range

High-Normal blood pressure

Grade 1 Hypertension

Grade 2 Hypertension

Isolated Systolic Hypertension

< 130

130-139

140-159

> 159

>139

< 80

80-89

90-99

> 99

<90

* Based on Singapore Ministry of Health Clinical Practice Guidelines

Learn more about our affordable Health Screening & Blood test packages here.

- Basic Screening Plan for Regular health check including Coronary Risk

- Special Screening Plan for Healthy aging & Detection of Chronic diseases including Cardiac Risk

These other webpages below may also interest you, click to learn more about your health condition.

Hypertension Symptoms & Treatment, Blood Pressure monitoring, BP Chart

Categories of Hypertension

The various categories of blood pressure are defined according to blood pressure values for both diastolic and systolic blood pressure readings.

Hypertension is defined as Diastolic pressure > 80mmHg and Systolic blood pressure > 130mmHg.

Isolated Systolic Hypertension is defined as Systolic blood pressure >139mmHg in the presence of a Diastolic blood pressure < 90mmHg. It is most frequently seen in elderly people.

Essential hypertension is the presence of sustained hypertension in the absence of underlying, potentially correctable renal, adrenal or other factors.

Mild Hypertension - Mildly hypertensive people have almost twice the risk of vascular disease compared to people with normal blood pressure. Non-drug measures may be suggested by your doctor if there is no evidence of end-organ damage. If after 6 months or more, these methods have not succeeded, then antihypertensive drug therapy may be necessary.

Severe hypertension has a Diastolic blood pressure > 115mmHg. For people with severe hypertension, their blood pressure may be life-threatening. They must be checked immediately by their doctor for hypertensive complications (eg cardiac failure etc). They are more likely to have an underlying cause (eg renovascular disease). Hospitalization may be necessary for these patients. The opinion of a cardiologist is needed because of the likely risk of serious illness or death.

Refractory hypertension exists where control of the blood pressure has not been achieved despite reasonable treatment for 3 or 4 months. A review of a possible secondary cause by your doctor is appropriate. The uncontrolled hypertension may be due to many possible reasons such as drug-related causes, poor compliance, renovascular hypertension, nicotine (smoking), licorice, caffeine (strong coffee), obesity, excessive alcohol intake, excessive salt intake, renal insufficiency, volume overload or illicit substances etc.

In patients aged 50 or less, the Diastolic level always takes precedence over the Systolic level.

All hypertensive people should attempt to adopt the Self-help High Blood Pressure Treatments.


Noel Bairey Merz: The single biggest health threat women face

Surprising, but true: More women now die of heart disease than men, yet cardiovascular research has long focused on men. Pioneering doctor C. Noel Bairey Merz shares what we know and don't know about women's heart health -- including the remarkably different symptoms women present during a heart attack (and why they're often missed).

How to take Blood Pressure

The classification of hypertension categories should be based on the average of 2 or more blood pressure readings on at least 3 or more occasions.

Measuring Blood Pressure should take the following factors into account :

Apprehension - The patient should be rested for at least 5 minutes and made as relaxed as possible. 'White coat hypertension' refers to elevated blood pressure caused by the anxiety of seeing the doctor's white coat. Affecting up to 25% of patients presenting with mild hypertension, these people have a type of conditioned response to the clinic setting, while their home blood pressure profiles are normal.

Caffeine and blood pressure - Patients should not take caffeine/coffee for 4-6 hours before blood pressure measurement.

Smoking - Patients should also avoid smoking for 2 hours before taking blood pressure.

Eating - Patients should not have eaten for 30 minutes.

Learn more about our affordable Health Screening & Blood test packages here.

- Basic Screening Plan for Regular health check including Coronary Risk

- Special Screening Plan for Healthy aging & Detection of Chronic diseases including Cardiac Risk

These other webpages below may also interest you, click to learn more about your health condition.

Heart Health - Coronary Heart Disease, Learn what is Angina and Stroke, as well as How to Lower Cholesterol


High Blood Pressure in Children

The children of parents with hypertension should be closely watched. Those at risk of secondary hypertension eg renal or cardiovascular disease, urological abnormalities and Diabetes Mellitus, should have routine blood pressure measurements.

Those children with visual changes, headaches or recurrent abdominal pain or seizures should also have a blood pressure check regularly.

These children can also follow the Self-help High Blood Pressure Treatments.

High Blood Pressure during Pregnancy

High blood pressure in pregnancy can be either Preeclampsia (pregnancy induced hypertension) or Essential hypertension. Blood pressure levels normally drop during the second trimester and rise in the third. Hypertensive pregnant women should be properly supervised by their obstetrician.


How a Wheat-free Diet can Improve your Chronic Illnesses

Can a Wheat-free Diet help you to lose weight and reduce Obesity, Heart disease, Auto-immune diseases & Cancer, even Alzheimer's disease & Schizophrenia or reverse Diabetes & pre-Diabetes? Recent research has also shown promising results that a Gluten-free diet showed a reduction in the symptoms of Rheumatoid Arthritis and Osteoarthritis, Irritable Bowel Syndrome, Heartburn/GERD, ADHD, Asthma & allergies, even acne.

Watch the following videos by several doctors (Dr William Davies, Dr Sarah Hallberg, Dr Alessio Fasano, Dr David Perlmutter & Dr Rodney Ford) and decide for yourself whether you should adopt a Gluten-free diet if you are suffering from the above-listed medical conditions. Even unexplained diarrhea, headaches/migraines or chronic fatigue has been alleviated by going Gluten-free.

The case these doctors put forward based on research and empirical evidence from thousands of patients is that Wheat and Gluten contributes to this shocking host of diseases and chronic medical problems, and increasing the incidence of celiac disease and Autism.

What does Wheat & Gluten do to your body?

Foods containing wheat have an extremely high glycemic index (70+ out of a possible 100), that is the body suffers a sudden spike in blood glucose after a meal of food containing wheat. Add to that the fact that the wheat we are eating is completely dissimilar genetically to the wheat of the 1950's, after all the genetic modifications and mutations the plant has undergone.

The doctors also point out that Gluten causes prolonged periods of inflammation in the body, leading to many of the diseases most prevalent today. Ironically, foods containing wheat are actually appetite-enhancing and can cause sugar cravings.

William Davis MD - Wheat: The UNhealthy Whole Grain

The wheat of today is not the wheat of our mothers or grandmothers. Modern wheat is the product of genetic manipulations that have transformed its properties. Modern wheat is now a 2-foot tall, high-yield semi-dwarf strain, different in both appearance and multiple biochemical features from traditional wheat. Introduction of this new strain of wheat was associated with the appearance of a long list of health problems, along with weight gain and diabetes.

According to Dr. Davis, saying goodbye to all things wheat provides outsized and unexpected health benefits, from weight loss, to relief from acid reflux and bowel urgency, to reversal of diabetes, migraine headaches, and learning disabilities in children.

Dr. William Davis is author of the #1 New York Times bestselling book, Wheat Belly: Lose the wheat, lose the weight and find your path back to health (Rodale, 2011), now debuting internationally in over ten foreign languages. Wheat belly has helped spark a nationwide reconsideration of the conventional advice to "eat more healthy whole grains."

Formerly an interventional cardiologist, he now confines his practice to prevention and reversal of coronary disease in his practice in Milwaukee, Wisconsin. Dr. Davis is a graduate of the St. Louis University School of Medicine, followed by training in internal medicine and cardiology at the Ohio State University Hospitals, and training in interventional cardiology at the Case--Western Reserve Hospitals in Cleveland, Ohio. He is also founder of the online heart disease prevention educational program, Track your Plaque.

Reversing Type 2 diabetes starts with ignoring the guidelines - Dr Sarah Hallberg | TEDxPurdueU

Can a person be "cured" of Type 2 Diabetes? Dr. Sarah Hallberg provides compelling evidence that it can, and the solution is simpler than you might think.

Dr. Sarah Hallberg is the Medical Director of the Medically Supervised Weight Loss Program at IU Health Arnett, a program she created. She is board certified in both obesity medicine and internal medicine and has a Master’s Degree in Exercise Physiology. She has recently created what is only the second non-surgical weight loss rotation in the country for medical students. Her program has consistently exceeded national benchmarks for weight loss, and has been highly successful in reversing diabetes and other metabolic diseases. Dr. Hallberg is also the co-author of www.fitteru.us, a blog about health and wellness.

Alessio Fasano MD - Spectrum of Gluten-Related Disorders: People Shall Not Live by Bread Alone

The cultivation of gluten-containing grains that were the backbone of the agricultural revolution have also brought with them the manifestation of conditions related to negative reactions to gluten. These include celiac disease, wheat allergy and the "new kid on the block" of the spectrum of gluten-related disorders—gluten sensitivity. The autoimmune disorder of celiac disease is the most widely studied condition on the spectrum. It affects approximately 1 in 133 people, a rate that has doubled in the U.S. every 15 years over the past 35 years. An estimate from the Center for Celiac Research puts gluten sensitivity at 6% of the U.S. population. With current interest in the human genome and microbiome, research is leading scientists to examine the relationship between the intestinal microbiome and gluten-related disorders. Currently the gluten-free diet is the only available treatment for gluten-related disorders.

World-renowned pediatric gastroenterologist, research scientist, and entreprenuer Alessio Fasano, M.D., founded the Center for Celiac Research in 1996. The Center offers state-of-the art research, clinical expertise and teaching for the diagnosis, treatment, and prevention of gluten-related disorders, including celiac disease, wheat allergy, and gluten sensitivity. Trained in Naples, Italy, as a pediatric gastroenterologist, Dr. Fasano was recruited to the University of Maryland School of Medicine in 1993 and founded its Division of Pediatric Gastroenterology and Nutrition. Puzzled by the absence of children exhibiting symptoms of celiac disease in the clinic, he resolved to uncover the mystery of missing American "celiacs." His perseverance in the face of skepticism about celiac disease in the U.S. eventually led to his publication of the groundbreaking study in 2003 that established the rate of the autoimmune disorder at one in 133 Americans.

In early 2013, Dr. Fasano was appointed Division Chief of Pediatric Gastroenterology and Nutrition at MassGeneral Hospital for Children. He brought the Center for Celiac Research to Boston, where he heads the Mucosal Immunology and Biology Research Center, based in Charlestown, and is Associate Chief for Basic, Clinical and Translational Research for the Department of Pediatrics at MassGeneral Hospital for Children. He is a Visiting Professor of Pediatrics at Harvard Medical School.

Dr. Mercola Interviews Dr. David Perlmutter, Author of Grain Brain

Natural health expert and Mercola.com founder Dr. Joseph Mercola interviews Dr. David Perlmutter about the implications of diet to Alzheimer's risk.

Here is a list of the Best Antioxidants and Free Radical Scavengers that you should be taking as dietary supplements daily as recommended by Dr David Perlmutter, author of 'Grain Brain':

  • Tumeric
  • DHA Omega 3
  • B complex vitamins (including Vitamin B12)
  • Vitamin C & D
  • Bacopa
  • Brocolli
  • Alpha-Lipoic acid 300 (ALA)
  • Ashwagandha
  • Resveratrol
  • Milk Thistle
  • Green Tea
  • Probiotics
  • Coenzyme Q10 (coq10)

These nutritional supplements reduce oxidative stress on your brain and body, thus protecting your health.


These other webpages below may also interest you, click to learn more about your health condition.

Diabetes Symptoms, Monitoring, Diet, Treatment & Health tips

The information provided in this website is for knowledge purposes only. It does not constitute medical advice.

Should you encounter any medical problem that you are unsure of, always consult your doctor or health care provider for assistance and medical advice.

Dr Don V H LAU   Chairperson of AMDA Singapore

MBBS (Monash), B.Med.Sc.(Hons) (Monash), Grad.Dip.Derm.(Wales,UK)

AMDA International Peace Clinic is a part of AMDA (Association of Medical Doctors of Asia). We are part of the network of AMDA Peace Clinics & Friendship Hospitals around the world. We dedicate part of our profits to AMDA's worldwide Emergency Disaster Aid Relief missions, Social Development projects and Vaccination programmes.

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MBBS (Monash), B Med Sc (Hons) (Monash), Dip Pract Derm (Wales, UK)

Chairperson of AMDA Singapore


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