High Blood Pressure: Readings Explained, Home Monitoring and Lifestyle Steps

Most people find out about their blood pressure by accident. A nurse wraps the cuff around your arm before a dental procedure, at a pre-employment check-up, or while you are being seen for back pain, and the reading comes back as 152/96. You feel completely normal. No headache, no giddiness, nothing. So is it really a problem, was it just the traffic on the way in, and do you now have to take tablets for the rest of your life?

High blood pressure, or hypertension, is often called a silent risk because it usually causes no symptoms while it slowly strains the heart, brain, kidneys and eyes. In this guide, our doctors explain what the two numbers mean, how to check your BP correctly at home, where the hidden salt in Indian food comes from, which everyday painkillers can push BP up, why BP medicines should never be stopped on your own, and which warning signs mean you must go to an emergency department straight away.

What is blood pressure, and why is high BP called silent?

Blood pressure is the force of blood against the artery walls as the heart pumps. It naturally rises when you climb stairs or rush for a bus, and falls when you rest or sleep.

Hypertension means the pressure stays high even at rest. Over months and years, this extra force stiffens and damages the artery walls. The heart has to work harder and its muscle thickens. Small vessels in the kidneys and the back of the eye are injured. The risk of heart attack, heart failure, stroke, kidney disease and memory problems all rise.

The difficult part is that most people feel nothing at all. Many believe they will “know” when their BP is high because they will get a headache or feel hot in the face. In reality, most headaches have nothing to do with blood pressure. A common one in office workers is the tension or neck-related type described in neck pain and headaches. The only way to know your BP is to measure it.

BP readings explained: what do the numbers mean?

Different guidelines draw the lines slightly differently, and your own doctor will interpret your numbers alongside your age, sugar, cholesterol, kidney function and family history. The table below is a simple, widely used guide for adults.

If only one number is high, the higher category counts. A top number of 150 with a bottom number of 82 is still high BP. In people over 50, a raised systolic number is especially common because the arteries naturally stiffen with age, and it still matters.

White coat and masked hypertension

Some people are tense in a clinic and their BP is high only there. This is called white coat hypertension. Others are the opposite: normal in the clinic but high at home or at work, which is called masked hypertension. Both are reasons why home monitoring, or sometimes a 24-hour BP recording, is so useful before deciding on lifelong treatment.

How to check your BP at home correctly

A home BP machine is one of the most useful health devices a family can own, but only if it is used properly. A wrong cuff size or a reading taken straight after climbing the stairs can be off by a surprising amount.

1. Choose the right machine. An automatic upper-arm monitor that has been clinically validated is the best choice. Wrist and finger devices are less reliable. Ask your doctor or pharmacist to check it against a clinic reading once.
2. Use the correct cuff size. A cuff that is too small for a large arm gives falsely high readings. Most machines mark the arm range on the cuff.
3. Prepare for 30 minutes. No tea, coffee, smoking or exercise for half an hour before. Empty your bladder first.
4. Sit properly. Sit on a chair with your back supported and feet flat on the floor, legs uncrossed. Rest quietly for five minutes. Place the cuff on bare skin, with your arm resting on a table at the level of your heart.
5. Do not talk or scroll your phone. Take two readings one minute apart and note both.
6. Check twice a day for a week. Once in the morning before medicines and breakfast, and once in the evening. Write down the date, time and readings, or save them in the machine. Ignore the first day and take the average of the rest.

Bring this log, and your machine if you can, to your appointment. It tells your doctor far more than a single reading.

What causes high blood pressure?

In most adults there is no single cause. This is called primary or essential hypertension, and it builds from a mix of family genes, age, extra body weight (especially around the waist), salty food, physical inactivity, alcohol, tobacco, poor sleep and long-term stress. It often travels together with high blood sugar and abnormal cholesterol.

In a smaller group, something else is driving it. This is called secondary hypertension, and doctors look for it especially when BP is very high in a young person, is hard to control despite three medicines, or rises suddenly. Causes include kidney disease, thyroid problems, hormone conditions of the adrenal gland, sleep apnoea (loud snoring with pauses in breathing), pregnancy-related BP, and medicines such as painkillers, steroid tablets and some cold remedies. Long courses of steroids are a well-known cause of raised BP and sugar, as explained in our guide to steroid side effects.

Salt in Indian food: where it really hides

Salt (sodium) makes the body hold on to water, which raises the pressure in the arteries. Some people are more salt-sensitive than others, but almost everyone with high BP benefits from eating less. The World Health Organization advises adults to keep total salt below 5 grams a day, which is roughly one level teaspoon, and that includes all the salt already in your food.

Most of our salt does not come from the shaker. In a typical South Indian or North Indian home, the main sources are:

• Pickles, papad and chutney powders. A spoon of mango or lime pickle can carry a large share of the day’s salt.
• Namkeen, mixture, chips and bakery items. Puffs, biscuits and even bread contain more salt than most people expect.
• Ready-made masalas and instant foods. Sambar and rasam powders with added salt, instant noodles, soup packets and ready-to-eat curries.
• Restaurant and takeaway meals. Biryani, fried rice, chaat and gravies are usually far saltier than home cooking.
• Buttermilk, curd rice and fruit with extra salt or chaat masala. Small sprinkles add up through the day.

Rock salt (sendha namak), black salt and pink salt are often sold as healthier, but they are still mostly sodium chloride and raise BP in much the same way. Reduce salt slowly over a few weeks and your taste buds adjust. Lemon, tamarind, garlic, ginger, curry leaves, jeera and pepper add flavour without sodium. Plenty of vegetables, fruit, dals and pulses provide potassium, which helps balance sodium. If you have kidney disease or take certain BP medicines, ask your doctor before using potassium-based “low sodium” salt substitutes. Our article on diet and arthritis pain shows how the same home-cooked, less processed way of eating helps joints too.

Lifestyle steps that lower blood pressure

Lifestyle changes make medicines work better, and with mildly raised BP they are sometimes enough on their own.

• Lose some weight if you carry extra. Even a few kilos off the waist can bring BP down. Extra weight also loads the joints, as we explain in weight and joint pain.
• Move every day. Aim for about 30 minutes of brisk walking on most days, plus some strength work. If knee pain stops you walking, start with the gentle routines in exercises for knee osteoarthritis at home, and see a doctor about the pain itself.
• Stop tobacco in every form, including gutka and beedi, and keep alcohol low or avoid it.
• Sleep seven to eight hours. Short or broken sleep raises BP. Loud snoring with daytime sleepiness should be checked for sleep apnoea. Pain that keeps you awake is part of the picture too, as described in sleep and chronic pain.
• Manage stress. Slow breathing, a short walk after work, prayer or yoga, and time away from screens all help.
• Look after blood sugar. Diabetes and high BP together raise heart and kidney risk sharply. If you live with diabetes and also have back pain, read why steroid-free care matters for people with diabetes.

Painkillers (NSAIDs) and blood pressure

This is one of the most overlooked causes of poorly controlled BP, and it matters a great deal to people living with back, knee or joint pain. The common anti-inflammatory painkillers, known as NSAIDs, include ibuprofen, diclofenac, aceclofenac, naproxen, etoricoxib and many combination “body pain” tablets sold over the counter. They can:

• Make the body retain salt and water, raising BP and causing ankle swelling.
• Reduce the effect of several BP medicines, including diuretics (water tablets) and ACE inhibitors or ARBs (names ending in “-pril” or “-sartan”).
• Strain the kidneys, particularly in older people, those who are dehydrated, and anyone taking an ACE inhibitor or ARB together with a diuretic.
• Increase the risk of heart attack and stroke with regular, long-term use.

Gels applied to the skin carry much less of this risk than tablets. Paracetamol is usually considered a safer short-term option for most people with high BP, though it should still be used only at the dose your doctor advises. The bigger point is that needing painkillers week after week is a sign the pain itself has not been properly treated. We explain this in why painkillers are not the answer for chronic pain. Always tell any doctor treating your pain that you have high BP, and tell your BP doctor about every painkiller you take.

The same applies to steroid injections for back or joint pain, which can push up BP and blood sugar for several days. If you have been offered one, our guide to the epidural steroid injection explains what to ask first.

BP medicines: why you should never stop them on your own

Doctors choose from several well-studied groups of BP medicines: calcium channel blockers such as amlodipine, ACE inhibitors and ARBs, thiazide-type diuretics, and sometimes beta blockers or others. Many people need two medicines, often combined in one tablet. These medicines protect the heart, brain and kidneys over the long term, which is why they are taken every day even when you feel well.

A very common story is: “My BP became normal, so I stopped the tablet.” The BP is normal because of the tablet. Stopping suddenly can make it climb back up, and with some medicines, such as clonidine and beta blockers, stopping abruptly can cause a dangerous rebound. Never stop or halve your BP medicines on your own, and do not change the dose based on a single home reading.

If you have side effects, such as ankle swelling, a dry cough, dizziness on standing or frequent urination, tell your doctor. There is usually an alternative. Some diuretics can raise uric acid, so if you develop a sudden hot, swollen big toe, read about gout and high uric acid and speak to your doctor rather than stopping the tablet. If lifestyle changes bring your BP down a lot over time, your doctor may reduce the dose in a planned, monitored way.

How Dr Heal can help

Many of our patients come to us for back, neck or knee pain and discover along the way that their BP is high. We take that seriously, because it changes how pain should be treated. Here is how we can support you:

1. Careful checks, any time. Our doctors are available 24 hours to measure your BP properly, review your home log, and look at the full picture of your health. Meet our doctors.
2. Tests under one roof. Kidney function, blood sugar, cholesterol, thyroid, electrolytes and urine tests in our in-house laboratory, with radiology on site and a 24-hour pharmacy. See our facilities.
3. Nutrition and weight guidance. Through functional medicine and clinical nutrition we help with practical, lower-salt Indian meal plans, weight, sleep and stress, and check for problems such as vitamin D and B12 deficiency that make people tired and achy.
4. Pain care that is kinder to your BP. For joint, back and nerve pain, we aim to reduce reliance on daily painkillers. When an injection is needed, we use a regenerative preparation from Dr Heal Pharma made without steroids, painkillers or antibiotics, so there is no steroid-related spike in BP or sugar. Read more about regenerative medicine, our back pain treatment and knee pain treatment.
5. Coordination with your specialist. We work alongside your physician or cardiologist, share findings, and refer you promptly when heart, kidney or hormone tests are needed. We will not change medicines another doctor has prescribed without discussing it with them.

You can browse all our treatments, including joint pain and arthritis treatment for people who rely on anti-inflammatory tablets.

What you can do from today

• Know your numbers. Every adult should have BP checked at least once a year, and more often if over 40, overweight, diabetic or with a family history.
• Take the pickle off the daily plate. Keep it for occasional use, and stop adding salt at the table.
• Walk after dinner. A 15-minute walk helps BP, sugar and digestion. Build small habits like those in daily habits for a healthy spine.
• Keep a medicine list. Write down every tablet, including painkillers and supplements, and show it to every doctor you see.

Frequently asked questions

Is 140/90 considered high blood pressure?

Yes, if clinic readings stay at 140/90 or above on repeated checks, it is generally treated as hypertension. One reading is not enough, so your doctor will confirm it with more readings, ideally a week of home monitoring, where an average of 135/85 or above is considered high.

Can I stop my BP tablets once my readings are normal?

No, not on your own. Normal readings usually mean the medicine is working. Stopping can make BP rise again, and some medicines cause a dangerous rebound if stopped suddenly. If your readings stay low, your doctor may reduce the dose in a planned way.

Which painkiller is safer if I have high BP?

NSAIDs such as ibuprofen, diclofenac and naproxen can raise BP and weaken BP medicines, so regular use is best avoided. Paracetamol at the advised dose is usually the safer short-term choice. If you need painkillers often, get the cause of the pain treated, for example through our sciatica treatment or care for pain in many joints.

Is rock salt or pink salt better for BP?

Not really. Rock salt, black salt and pink salt are still mostly sodium chloride and affect BP in much the same way as table salt. The amount you eat matters far more than the type.

Does high BP cause headaches or neck pain?

Usually not. Most people with high BP feel nothing. Very high BP can cause headaches, and a sudden, severe headache needs the emergency department immediately. Everyday neck stiffness and headaches are more often linked to posture or cervical spondylosis, but it is still wise to check your BP.

Where can I get my BP checked and blood tests done in Bengaluru?

Dr Heal Pain Cure Hospital offers BP checks, in-house laboratory tests and nutrition guidance at its HSR Layout and Banashankari branches. Both are open 24 hours, and patients come to us from all over Karnataka.

This article is for general information and is not a substitute for a medical consultation. Please see a doctor for advice about your own symptoms, and do not change or stop any prescribed medicine without talking to your doctor.