If you've never checked your blood pressure, you're in good company — many people haven't. But unlike some health markers, high blood pressure rarely announces itself with obvious symptoms. You could have it for years without knowing, all the while it's quietly working against your heart and arteries. That's why understanding your numbers and keeping tabs on them is so important.

What Is Blood Pressure?

Blood pressure is the force with which your blood pushes against your artery walls as your heart pumps. It's measured in two numbers, written as a fraction: systolic over diastolic.

Systolic (the top number)

This is the pressure when your heart contracts and pumps blood out. It's the higher of the two numbers.

Diastolic (the bottom number)

This is the pressure when your heart relaxes between beats. It's the lower number.

For example, a reading of 120/80 means your systolic pressure is 120 and your diastolic is 80. Both matter — they tell your doctor different things about your heart health.

Understanding Your Numbers

Blood pressure falls into categories. Here's what the Canadian guidelines recommend:

Normal: Less than 120/80 mmHg — keep doing what you're doing.
Elevated: 120-129 systolic and less than 80 diastolic — borderline; lifestyle changes can help.
High Stage 1: 130-139 systolic or 80-89 diastolic — time to talk to your doctor.
High Stage 2: 140 or higher systolic or 90 or higher diastolic — see your doctor soon.
Hypertensive Crisis: 180 or higher systolic or 120 or higher diastolic — seek immediate care.

Where you fall in these ranges helps determine whether lifestyle changes alone might help, or whether medication is necessary. And importantly, your numbers can change — one high reading doesn't automatically mean you have high blood pressure. That's why monitoring over time is crucial.

Why It Often Has No Symptoms

This is what makes hypertension so dangerous. Your body adapts to elevated pressure, and most people feel completely fine. You won't get a headache or feel dizzy — the damage is happening silently in your arteries, heart, and kidneys. Some people only discover they have high blood pressure during a routine check-up or when they've had a heart attack or stroke.

This is exactly why regular monitoring — whether at home or in our pharmacy — can be lifesaving. Catching it early means you have time to make changes before serious complications develop.

White Coat Hypertension

Here's a peculiar phenomenon: some people's blood pressure shoots up in a doctor's office simply because they're anxious about being there. This is called "white coat hypertension," and it's real. Your sympathetic nervous system kicks in, your heart rate rises, and suddenly your numbers look worse than they actually are at home.

This is one reason home monitoring is so valuable. If your readings are consistently normal at home but high at the doctor's office, your doctor may want to monitor your trend rather than start medication immediately. Conversely, some people have the opposite problem — "masked hypertension," where their numbers look fine in the doctor's office but are actually elevated at home. Again, home readings help paint the real picture.

Home Monitoring: Tips for Accurate Readings

If you're going to check your blood pressure at home, do it right. A bad technique can give you a falsely high reading and lead to unnecessary worry or treatment.

  • Take it in the morning, before medication and within an hour of waking, when readings tend to be most reliable.
  • Use the same arm every time — pressure can vary by 10 mmHg between arms, so consistency matters.
  • Sit quietly for 5 minutes first. Don't check right after exercising, drinking coffee, or being stressed. Your nervous system needs time to settle.
  • Avoid caffeine and smoking for 30 minutes before. Both raise blood pressure temporarily.
  • Take 2 or 3 readings, a minute apart. If they vary widely, take more. Use the average.
  • Make sure your cuff fits properly. Too loose and it reads high; too tight and it reads low. Most cuffs come in standard and large sizes.
  • Keep a log. Write down your readings and the date. This helps your doctor spot trends over weeks and months.

Not sure which home monitor to choose? We stock several validated, easy-to-use models at Keating's. Ask our staff for a recommendation that fits your needs — some people prefer automatic arm cuffs, while others like wrist or finger monitors.

Free In-Store Blood Pressure Checks at Keating's

You don't need to buy a monitor to get your blood pressure checked. Walk into Keating's Pharmacy anytime during our hours, and any of our staff can take your reading for free — no appointment needed. We use calibrated, professional equipment and can answer questions about what your numbers mean.

Many customers like to check with us periodically as a baseline, especially if they don't have a home monitor or if they want a professional reading to compare against their home readings. We keep records confidential and can help you understand trends.

When to See Your Doctor

If your readings are consistently in the elevated or high range, it's time to schedule an appointment with your family doctor or nurse practitioner. They can:

  • Rule out secondary causes (kidney disease, thyroid problems, certain medications).
  • Assess your overall cardiovascular risk based on age, family history, cholesterol, diabetes, and smoking.
  • Discuss whether lifestyle changes alone might help, or if medication is needed.
  • Establish a monitoring plan with you.

Also seek medical attention if you have a single reading of 180/120 or higher, especially if you experience chest pain, shortness of breath, or severe headache. That's a hypertensive emergency.

Lifestyle Changes That Help

The good news: many people can lower their blood pressure significantly without medication, or at least reduce how much medication they need.

  • Reduce sodium intake. Aim for less than 2,300 mg per day (about a teaspoon of salt). Most of our sodium comes from processed foods, so cooking at home helps.
  • Exercise regularly. Even 30 minutes of brisk walking, 5 days a week, can lower systolic pressure by 5–8 points.
  • Limit alcohol. No more than 2 drinks per day for men, 1 for women.
  • Manage stress. Meditation, deep breathing, and regular breaks reduce pressure spikes.
  • Maintain a healthy weight. Losing even 5–10% of your body weight can make a measurable difference.
  • Eat more potassium. Bananas, sweet potatoes, spinach, and beans help counteract sodium's effects.
  • Take your medications consistently. If you're prescribed blood pressure medication, missing doses defeats the purpose.

These changes work best in combination. Even modest efforts across all of them can add up to meaningful results.

What We Can Help With

At Keating's Pharmacy, blood pressure management is something we take seriously. Beyond our free blood pressure checks, our pharmacists can help you understand any medications you're prescribed, discuss side effects, and remind you about the importance of consistency. If you have questions about your readings or whether a change in your health or symptoms might affect your medication, we're here to talk.

Your blood pressure today is a reflection of your habits and health — but it's never too late to start paying attention. Taking those first steps to monitor and understand it is an investment in your long-term health.