High blood pressure

Sources

Every numbered claim on the overview and article pages is listed here with the exact passage it rests on. 89 passages were checked word-for-word against the saved copies listed below.

Pharmacist review pending89 verified passagesUpdated 2026-10-22

Current evidence

1

Half of American adults have high blood pressure, and many don't know it.

“Half of all American adults have high blood pressure, also known as hypertension. Many don’t even know it.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
2

Blood pressure is written as two numbers, like 120/80 mm Hg. The top (systolic) is the force as the heart pumps; the bottom (diastolic) is measured between beats, while the heart fills.

“Blood pressures are written as two numbers separated by a slash like this: 120/80 mm Hg.”
“pressure — that’s the force of the blood flow when blood is pumped out of the heart.”
“pressure, which is measured between heartbeats when the heart is filling with blood.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
3

Your blood pressure changes throughout the day with your activities.

“Your blood pressure changes throughout the day based on your activities.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
4

Categories: normal, less than 120 and less than 80; elevated, 120 to 129 and less than 80; stage 1, 130 to 139 or 80 to 89; stage 2, 140 or higher or 90 or higher.

“Normal Less than 120 systolic pressure AND Less than 80 diastolic pressure”
“Elevated 120 to 129 systolic pressure AND Less than 80 diastolic pressure”
“High Blood Pressure Stage 1 130 to 139 systolic pressure OR 80 to 89 diastolic pressure”
“High Blood Pressure Stage 2 140 or higher systolic pressure OR 90 or higher diastolic pressure”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
5

Readings above 180/120 mm Hg are a hypertensive crisis: dangerously high, needing immediate medical attention.

“Hypertensive Crisis Higher than 180 systolic pressure OR Higher than 120 diastolic pressure”
“Readings above 180/120 mm Hg are dangerously high and require immediate medical attention.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
6

For most adults, healthy is less than 120/80 mm Hg. Blood pressure is high with consistent readings of 130 or higher on top, or 80 or higher on the bottom.

“For most adults, a healthy blood pressure is less than 120/80 mm Hg. Your blood pressure is considered high when you have consistent systolic readings of 130 mm Hg or higher or diastolic readings of 80 mm Hg or higher.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
7

Diagnosing high blood pressure takes two or more readings at separate appointments.

“You will need two or more blood pressure readings at separate medical appointments to diagnose high blood pressure.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
8

High blood pressure often causes no signs of illness you can see or feel.

“High blood pressure, sometimes called "the silent killer," often doesn't cause signs of illness that you can see or feel.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
9

About 1 in 3 U.S. adults with high blood pressure aren't aware they have it, and aren't being treated.

“About 1 in 3 U.S. adults with high blood pressure aren’t even aware they have it and are not being treated to control their blood pressure.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
10

Have your blood pressure checked at least once a year; regular home monitoring is also recommended.

“That’s why it is important to have your blood pressure checked at least once a year. Regular monitoring using home blood pressure is also recommended.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
11

Before a reading: no exercise, coffee or cigarettes for 30 minutes; go to the bathroom; sit and relax for at least 5 minutes.

“Do not exercise, drink coffee, or smoke cigarettes for 30 minutes before the test.”
“Go to the bathroom before the test.”
“For at least 5 minutes before the test, sit in a chair and relax.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
12

Feet flat on the floor, no talking, a bare arm for the cuff, and the arm resting on a table at heart level.

“Make sure your feet are flat on the floor.”
“Do not talk while you are relaxing or during the test.”
“Uncover your arm for the cuff.”
“Rest your arm on a table so it is supported and at the level of your heart.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
13

Readings can be different if the cuff is too small or too big.

“Your readings can be different if the cuff is too small or too big.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
14

White coat hypertension means readings are higher in a provider's office than at home or in a pharmacy; providers may compare readings from different places.

““White coat hypertension” refers to blood pressure readings that are higher in a provider’s office than readings at home or in a pharmacy.”
“To detect this type of high blood pressure, your provider may review readings from the office and from other places.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
15

Masked high blood pressure means readings are lower in the office; it is found by comparing office and home readings, especially at night.

“Sometimes those with elevated blood pressure levels may show lower readings when taken at a provider’s office. This is called “masked high blood pressure.””
“Your provider can recognize this type of high blood pressure by looking at readings taken at the office and at home, especially at night.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
16

At home, use an approved home blood pressure device so the readings are correct.

“If you take your own blood pressure at home, use an approved home blood pressure device to make sure the readings are correct.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
17

Take at least 2 readings 1 minute apart, in the morning before medicines and in the evening before supper. Record them daily for 5 days and report them to your provider.

“Take at least 2 readings 1 minute apart in the morning before taking medicines and in the evening before eating supper. Try to measure and record BP daily for 5 days and then report your results to your provider.”

MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for homePassage verified word-for-word in saved copy
18

Support your arm with the upper arm at heart level, feet on the floor, back supported and legs uncrossed.

“Your arm should be supported, with your upper arm at heart level and feet on the floor (back supported, legs uncrossed).”

MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for homePassage verified word-for-word in saved copy
19

Digital monitors are the best choice at home for most people, but an irregular heart rate makes the reading less accurate.

“Also, an irregular heart rate will make the reading less accurate.”
“However, digital monitors are the best choice for home use for most people.”

MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for homePassage verified word-for-word in saved copy
20

Practice with your provider or nurse to make sure you are measuring correctly.

“Practice using the monitor with your provider or nurse to make sure you are taking your blood pressure correctly.”

MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for homePassage verified word-for-word in saved copy
21

The cuff should fit snugly around the upper arm, its bottom edge just above the elbow.

“It should fit snugly around your upper arm, with the bottom edge placed just above your elbow.”

MedlinePlus (U.S. National Library of Medicine) — Measuring Blood PressurePassage verified word-for-word in saved copy
22

At 180/120 without symptoms, wait 5 minutes and check again. If it is still high and you have symptoms, call 911 — don't wait for it to come down.

“If your blood pressure is 180/120 but you don’t have symptoms, wait 5 minutes and check your blood pressure again.”
“If the second measurement is also high and if you have any of these symptoms, call 9-1-1”
“Do not wait to see if your pressure comes down on its own.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: SymptomsPassage verified word-for-word in saved copy
23

Those symptoms are a sudden severe headache, difficulty breathing, sudden severe pain in the abdomen, chest or back, numbness or weakness, a sudden change in vision, or problems talking.

“A sudden, severe headache”
“Difficulty breathing”
“Sudden, severe pain in your abdomen, chest, or back”
“Numbness or weakness”
“A sudden change in vision”
“Problems talking”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: SymptomsPassage verified word-for-word in saved copy
24

Controlling blood pressure can help prevent or delay chronic kidney disease, heart attack, heart failure, stroke and possibly vascular dementia.

“Controlling your blood pressure can help prevent or delay serious health problems such as chronic kidney disease , heart attack , heart failure , stroke , and possibly vascular dementia .”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?Passage verified word-for-word in saved copy
25

The NIH-funded SPRINT study found that lowering systolic pressure to less than 120 in adults 50 and older significantly reduced the risk of cardiovascular disease and death.

“found that lowering systolic blood pressure to less than 120 in adults age 50 and older significantly reduced the risk of cardiovascular disease and death.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
26

Even losing just 3% to 5% of your weight can improve blood pressure.

“Even losing just 3% to 5% of your weight can improve blood pressure.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: TreatmentPassage verified word-for-word in saved copy
27

Even a small amount of activity may help, like walking 10 minutes a day.

“Even a small amount of physical activity may help, like walking for 10 minutes each day.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: TreatmentPassage verified word-for-word in saved copy
28

Work your way up to at least 150 minutes (2.5 hours) of activity a week.

“work your way up to at least 150 minutes (2.5 hours) per week.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
29

For people who drink, no more than two drinks a day for men and one for women lowers the risk of high blood pressure.

“For those who drink, men should have no more than two drinks a day and women no more than one a day to lower their risk of high blood pressure.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
30

When lifestyle changes alone don't control it, your provider may prescribe medicines; many people need two or more.

“When healthy lifestyle changes alone do not control or lower high blood pressure, your provider may prescribe blood pressure medicines.”
“To manage high blood pressure, many people need to take two or more medicines.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: TreatmentPassage verified word-for-word in saved copy
31

Talk to your provider about side effects; they may change the dose or give you a different medicine.

“Talk to your provider if you have any concerns about side effects from the medicines. Your provider may change the dose or give you a new medicine.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: TreatmentPassage verified word-for-word in saved copy
32

Medication can control blood pressure but can't cure it. Keep taking it unless your doctor tells you to stop.

“Medication can control your blood pressure, but it can't cure it.”
“It’s important to keep taking your medication unless your doctor tells you to stop.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
33

Antidepressants, decongestants, hormonal birth control pills and anti-inflammatory drugs such as aspirin or ibuprofen can all raise blood pressure.

“Antidepressants, decongestants (medicines to relieve a stuffy nose), hormonal birth control pills, and non-steroidal anti-inflammatory drugs such as aspirin or ibuprofen can all raise your blood pressure.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: Causes and Risk FactorsPassage verified word-for-word in saved copy
34

Mention over-the-counter drugs, vitamins and supplements too. They may affect your blood pressure and how well your medicine works.

“Don't forget to mention over-the-counter drugs, as well as vitamins and supplements . They may affect your blood pressure. They also can change how well your blood pressure medication works.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
35

Get up slowly and stand for a bit before walking. Low blood pressure can make you lightheaded, weak, dizzy or faint.

“Get up slowly from a seated or lying position and stand for a bit before walking.”
“If you have low blood pressure, you may feel lightheaded, weak, dizzy, or even faint.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
36

Over 70% of dietary sodium comes from packaged and prepared foods, not from salt added while cooking or eating. The Nutrition Facts label helps you cut it.

“most dietary sodium (over 70%) comes from eating packaged and prepared foods —not from table salt added to food when cooking or eating.”
“you can lower your daily sodium intake by using the Nutrition Facts label.”

U.S. Food and Drug Administration (FDA) — Sodium in Your DietPassage verified word-for-word in saved copy
37

Americans eat about 3,400 mg of sodium a day on average; the recommended limit for adults is less than 2,300 mg.

“Americans eat on average about 3,400 mg of sodium per day.”
“recommends adults limit sodium intake to less than 2,300 mg per day”

U.S. Food and Drug Administration (FDA) — Sodium in Your DietPassage verified word-for-word in saved copy
38

In the DASH eating plan, 1,500 mg of sodium a day lowers blood pressure even further than 2,300 mg. DASH needs no special foods; it sets daily and weekly goals.

“1,500 milligrams (mg) sodium lowers blood pressure even further than 2,300 mg sodium daily.”
“The DASH eating plan requires no special foods and instead provides daily and weekly nutritional goals.”

NHLBI (U.S. National Institutes of Health) — DASH Eating PlanPassage verified word-for-word in saved copy
39

In older adults the top number is often 130 or higher while the bottom is below 80. This is called isolated systolic hypertension.

“For older adults, often the first number (systolic) is 130 or higher, but the second number (diastolic) is less than 80. This problem is called isolated systolic hypertension”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
40

A clinic sheet (brochure set, page 4) says EDTA "will control the blood pressure", alongside claims that it opens blocked arteries.

“It will open the blocked veains (Athrosclbroses)”
“it will control the blood pressure”

Pakistan Institute of Medical Advancement (PIMA), Karachi — clinic document — Printed brochure set, 8 pages (pages cited individually) (private clinic document; not online)Clinic document — quoted from ProperHealth’s transcription or translation of a scan; not independently verified
41

The FDA has never approved any chelation product for over-the-counter use; approved chelation drugs need a prescription because they are only safe under a clinician's supervision.

“FDA has never approved any chelation product for OTC use for any health condition.”
“All FDA-approved chelation products require a prescription because they can only be used safely under the supervision of healthcare practitioner.”

U.S. Food and Drug Administration — Questions and Answers on Unapproved Chelation ProductsPassage verified word-for-word in saved copy
42

The FDA warns that chelation can cause dehydration, kidney failure and death, and that relying on unproven chelation products can delay proven care for conditions such as heart disease.

“FDA is also concerned that chelation can result in serious side effects such as dehydration, kidney failure, and death.”
“FDA is concerned that patients will delay seeking proven, sometimes essential medical care, when relying on unproven OTC chelation products to treat serious conditions such as heart and blood vessel disease.”

U.S. Food and Drug Administration — Questions and Answers on Unapproved Chelation ProductsPassage verified word-for-word in saved copy
43

A reading above 180/120 with chest pain, trouble breathing, a sudden severe headache, numbness or weakness, a change in vision or trouble speaking — call 911. Do not wait to see if it comes down.

“Seek immediate medical attention or call 911 if your blood pressure is over 180/120 mmHg, you have chest pain, shortness of breath, back pain, numbness or weakness, trouble speaking, or vision changes.”

MedlinePlus (U.S. National Library of Medicine) — Measuring Blood PressurePassage verified word-for-word in saved copy
44

A reading above 180/120 with chest pain, trouble breathing, a sudden severe headache, numbness or weakness, a change in vision or trouble speaking — call 911. Do not wait to see if it comes down.

“Readings above 180/120 mm Hg are dangerously high and require immediate medical attention.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: DiagnosisPassage verified word-for-word in saved copy
45

A reading above 180/120 with chest pain, trouble breathing, a sudden severe headache, numbness or weakness, a change in vision or trouble speaking — call 911. Do not wait to see if it comes down.

“A sudden, severe headache”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: SymptomsPassage verified word-for-word in saved copy
46

Sudden face droop, arm weakness or speech difficulty — call 911. This can be a stroke.

“F — Face: Ask the person to smile. Does one side of the face droop?”
“A — Arms: Ask the person to raise both arms. Does one arm drift downward?”
“S — Speech: Ask the person to repeat a simple phrase. Is their speech slurred or strange?”
“T — Time: If you observe any of these signs, call 9-1-1 right away.”

NHLBI (U.S. National Institutes of Health) — Stroke - SymptomsPassage verified word-for-word in saved copy
47

A reading above 180/120 without symptoms — wait 5 minutes and check again; if it is still that high, call your healthcare provider.

“If your blood pressure is 180/120 but you don’t have symptoms, wait 5 minutes and check your blood pressure again. If it is still high, call your healthcare provider who may recommend starting a medicine or changing your dose.”

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: SymptomsPassage verified word-for-word in saved copy
48

Dizziness on standing that makes you unsteady — contact your prescriber; your blood pressure may be too low. Fainting, confusion, a weak and rapid pulse or cold skin — call 911.

“If you have low blood pressure, you may feel lightheaded, weak, dizzy, or even faint.”
“It can be caused by not getting enough fluids , blood loss, some medical conditions, or medications, including those prescribed for high blood pressure.”

National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older AdultsPassage verified word-for-word in saved copy
49

Dizziness on standing that makes you unsteady — contact your prescriber; your blood pressure may be too low. Fainting, confusion, a weak and rapid pulse or cold skin — call 911.

“Seek immediate medical attention or call 911 if you have symptoms of extremely low blood pressure, such as confusion, a weak and rapid pulse, or cold skin.”

MedlinePlus (U.S. National Library of Medicine) — Measuring Blood PressurePassage verified word-for-word in saved copy
50

Dizziness on standing that makes you unsteady — contact your prescriber; your blood pressure may be too low. Fainting, confusion, a weak and rapid pulse or cold skin — call 911.

“Call 911 or the local emergency number if the person who fainted:”
“Is over age 50”
“Feels chest pain, pressure, or discomfort”
“Has a pounding or irregular heartbeat”

MedlinePlus (U.S. National Library of Medicine) — FaintingPassage verified word-for-word in saved copy
51

Your monitor repeatedly reports an irregular heartbeat — book an assessment; the readings may also be unreliable.

“Also, an irregular heart rate will make the reading less accurate.”

MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for homePassage verified word-for-word in saved copy
52

Your monitor repeatedly reports an irregular heartbeat — book an assessment; the readings may also be unreliable.

“If your symptoms are very serious, such as difficulty breathing or chest pain, seek emergency medical care.”

NHLBI (U.S. National Institutes of Health) — Arrhythmias - SymptomsPassage verified word-for-word in saved copy

Source documents

NHLBI (U.S. National Institutes of Health) — High Blood Pressure: What Is High Blood Pressure?
Saved 2026-10-19 · download · page date April 25, 2024 · SHA-256 a2ee346171810c80…
NHLBI (U.S. National Institutes of Health) — High Blood Pressure: Diagnosis
Saved 2026-10-19 · download · page date June 26, 2025 · SHA-256 23ae26cd43464a4f…
NHLBI (U.S. National Institutes of Health) — High Blood Pressure: Symptoms
Saved 2026-10-19 · download · page date April 25, 2024 · SHA-256 01e3c0b356e76b54…
NHLBI (U.S. National Institutes of Health) — High Blood Pressure: Causes and Risk Factors
Saved 2026-10-19 · download · page date April 30, 2024 · SHA-256 c02f2f34ed6f12ae…
NHLBI (U.S. National Institutes of Health) — High Blood Pressure: Treatment
Saved 2026-10-19 · download · page date April 30, 2024 · SHA-256 60fc980b24f3159e…
NHLBI (U.S. National Institutes of Health) — DASH Eating Plan
Saved 2026-10-19 · download · page date February 25, 2026 · SHA-256 12d74307b517baf6…
National Institute on Aging (U.S. National Institutes of Health) — High Blood Pressure and Older Adults
Saved 2026-10-19 · download · page date October 1, 2022 · SHA-256 c21a7be67e81e225…
MedlinePlus (U.S. National Library of Medicine) — Blood pressure monitors for home
Saved 2026-10-19 · download · page date 7/1/2025 · SHA-256 ecc6f62a313b6134…
MedlinePlus (U.S. National Library of Medicine) — Measuring Blood Pressure
Saved 2026-10-19 · download · SHA-256 bb6b2954d051839c…
U.S. Food and Drug Administration (FDA) — Sodium in Your Diet
Saved 2026-10-19 · download · SHA-256 afa035cb63f42a96…
Pakistan Institute of Medical Advancement (PIMA), Karachi — clinic document — Printed brochure set, 8 pages (pages cited individually) (private clinic document; not online)
Saved 2026-10-19 · ProperHealth transcription of a scanned clinic document (private archive); wording kept as printed · SHA-256 0518db262b2bc902…
U.S. Food and Drug Administration — Questions and Answers on Unapproved Chelation Products
Saved 2026-10-19 · download · SHA-256 15ddd183fd1a1b72…
NHLBI (U.S. National Institutes of Health) — Stroke - Symptoms
Saved 2026-10-22 · download · SHA-256 968203d95d3cb573…
MedlinePlus (U.S. National Library of Medicine) — Fainting
Saved 2026-10-22 · download · SHA-256 eda2af62b2fd6755…
NHLBI (U.S. National Institutes of Health) — Arrhythmias - Symptoms
Saved 2026-10-22 · download · SHA-256 f8eb423a829e01a5…

Historical perspective: Dr. Majid Ali archive

Historical perspective drawn from the authorized writings of Dr. Majid Ali, preserved in the Clarkson archive. Shown for context; it is not current medical guidance.

What Is Hypertension (High BP)? 2015-12-15
Source of the quoted line. His own definition of hypertension in the same piece is not carried.
What Is Normal Blood Pressure? 2015-12-15
His questioning of population thresholds. His personal 'normal' range is held, below.
Hypertension (High Blood Pressure) 2015-12-15
His fullest blood pressure article; source for his food-and-practice-first emphasis.
Natural Remedies for High Blood Pressure 2017-08-03
Cited to disagree with it. His scepticism about blood pressure medicines is not carried in any form.
Controlling Blood Pressure With Breakfast and Footsoaks 2014-10-17
Historical framing only. Footsoaks are not a treatment for high blood pressure.

Claims we deliberately did not carry

His criticism of blood pressure medicines, and natural remedies offered as alternatives to them.
Medication controls blood pressure; keep taking it unless your doctor says stop.³² Not carried in any form.
Footsoaks and breakfast composition as ways of controlling blood pressure.
Not a treatment for high blood pressure. Not carried.
His personal 'normal' range of 100/60 to 140/90.
Contradicts current categories: healthy is below 120/80, and 130/80 or higher is high.⁶
Defining hypertension as deviation from a personal optimum, managed through 'oxygen-related issues'.
Not a recognised definition or treatment approach. Not carried.

Safety wording awaiting sign-off

The 'When to get help now' list is ProperHealth safety wording. Each line cites the official guidance it follows, and those passages are listed above with the other claims. The wording still needs pharmacist sign-off before public use.