Recently, a new patient sat down in my office. She was in her early 40s, otherwise healthy, active and busy. When I asked when she last had her blood pressure checked, she paused, laughed, and said she honestly couldn't remember.
She's not alone. And it's one of the reasons I wanted to write this post.
There's no hard and fast rule, but there is a pattern
There isn't one age when blood pressure suddenly changes. What we do know is that estrogen is protective of our cardiovascular system. It helps keep blood vessels flexible and supports healthy circulation. As estrogen declines through perimenopause and menopause, that protection fades, and our heart and vascular health start to change.
This matters, because heart disease and stroke are among the leading causes of death for women, and our risk climbs after menopause. Estrogen protects our bones too, which is why I also talk about bone health before menopause.
Why blood pressure often shifts in midlife
In my practice, I see a few things come together at once:
We become less resilient to stress. Hormone shifts can make it harder to bounce back from stress, and ongoing stress puts real strain on the cardiovascular system. This is often when I start to see blood pressure creep up. (Cholesterol and other lipids often change even earlier, but that's a post for another day.)
Our habits shift. Mood changes, poor sleep and more stress don't always lead to our best food choices. More takeout, more convenience food and more eating out usually means more sodium, and higher sodium intake is linked to higher blood pressure.
None of this is a personal failing. It's physiology meeting a very full season of life.
What counts as normal?
The top number (systolic) is the pressure when your heart beats. The bottom number (diastolic) is the pressure between beats.
High blood pressure isn't diagnosed from one reading
One high number at the pharmacy or the doctor's office doesn't mean you have high blood pressure. Readings bounce around with stress, caffeine, a rushed morning or even just being in a clinic. A diagnosis is confirmed with repeated readings over time, and current Canadian guidelines strongly recommend confirming it with home or 24-hour monitoring.
That's exactly why I want more women measuring at home.
Why high blood pressure is a problem
High blood pressure usually has no symptoms, which is why it's often called a silent risk. Over time, it damages blood vessels and is one of the biggest risk factors for stroke, as well as heart attack, heart failure and kidney disease. A rising reading in your 40s is an early sign worth paying attention to, and a chance to act early.
My 3 practical habits
1. Understand how stress affects your system
Stress isn't just "in your head". It shows up in your heart rate, your sleep, your cravings and your blood pressure. Start noticing your patterns. This is often where I use adaptogens with my patients to help support stress resilience. A word of caution though: some herbs can actually raise blood pressure (licorice root is a common one in adrenal and stress blends), so please don't self-prescribe. Talk to a naturopathic doctor who knows your full picture.
2. Check in on your salt
You don't need to obsess over every gram. But if you're eating out more, ordering in more or leaning on packaged foods, your sodium intake has probably gone up. Cooking at home a few more nights a week is one of the simplest changes you can make.
3. Get a home blood pressure cuff (and use it properly)
An inexpensive, validated electronic upper-arm cuff is one of the best investments you can make for your heart. Look for one marked as validated (Hypertension Canada keeps a list of recommended devices).
How to measure:
Sit quietly and calmly for 3 to 5 minutes first. No caffeine, exercise or smoking in the 30 minutes before.
Sit up straight with your back supported, feet flat on the floor and legs uncrossed.
Rest your arm on a table so the cuff is at heart level. Use the same arm each time (I suggest the left).
Make sure the cuff fits and sits on bare skin, not over a sleeve.
Take 2 to 3 readings about 1 minute apart and average them.
For the clearest picture, measure morning and evening for a week and bring your log to your next appointment.
When to get help right away
If your reading is higher than 180/120, wait at least a minute and check again. If it's still that high and you feel fine, contact your health care provider promptly.
If your reading is higher than 180/120 and you have chest pain, shortness of breath, back pain, numbness, weakness, changes in vision or difficulty speaking, call 911. Don't wait to see if it comes down.
Signs of stroke (face drooping, arm weakness, speech difficulty) always mean calling 911 right away.
In Alberta, you can call Health Link at 811 any time for nurse advice if you're unsure.
The bottom line
Your blood pressure is one of the simplest, most useful numbers you can know about your health. If you can't remember the last time you checked it, this is your sign.
As a naturopathic doctor in Calgary, blood pressure is one of the first things I check with women in midlife. At BioRevive, our Integrative Hormone Program is led by both our ND and MD, and your heart and vascular health is part of the bigger picture we look at together. If you'd like support, here's how to book with me.
This post is for general education and isn't a substitute for personalized medical advice. Please talk to your health care provider about your own blood pressure.
