High Blood Pressure: Causes, Risks, and What to Do to Lower It
- 3 days ago
- 7 min read
There is a “silent killer” impacting almost half of the adult population in the US.
There are often no symptoms. You can’t feel it. But slowly and silently it can damage the arteries, heart, and brain of 1 in 2 people.
It’s terrifying. And in many instances, it’s also avoidable.
The good news is there’s a lot you can do to lower it and lower your risk.
If you’ve ever been told your blood pressure is “a little high”, or you only see it spike at the doctor’s office, this article will help you understand what it means and what actually moves the needle.
What IS blood pressure?
Your blood pressure is the force of blood pushing against your artery walls.
Systolic (top number): Pressure when the heart contracts
Diastolic (bottom number): Pressure when the heart relaxes
When either number is elevated consistently, your heart and blood vessels are working under higher strain.
What counts as high blood pressure?
Why blood pressure goes up:
Most people will high blood pressure have a mix of contributors.
Let’s start with the things we can impact that play an important role in your body’s blood pressure:
Excess body fat, especially visceral fat
Low physical activity and low muscle mass
Poor sleep and untreated sleep apnea (this is big for women in menopause!)
Alcohol intake
A diet high in ultra-processed foods
Low potassium intake
Smoking
Also: some cases have a secondary medical cause (kidney disease, endocrine issues, certain medications).
Other factors that can contribute but are less modifiable (but not totally):
Family history (verdict is still out on if this is purely genetic or a mix of genes and similar lifestyles among those family members)
Aging and arterial stiffness (our lifestyles as we age play a role in this as well)
Hormonal shifts (perimenopause & menopause can impact this greatly if not supported with HRT)
What is high blood pressure doing behind the scenes?
Think of blood pressure like water pressure in a hose. If you turn the hose on high and plug the end of it, you’ll eventually damage the hose (your arteries and the organs they supply).
High blood pressure contributes to:
Artery damage and atherosclerosis: higher pressure can injure artery walls and accelerate plaque buildup.
Heart remodeling: the heart has to pump against greater resistance, which can lead to thickening of the heart muscle and eventually heart failure.
Stroke risk: hypertension is a major risk factor for ischemic and hemorrhagic stroke.
Kidney strain: kidneys are full of delicate blood vessels; high pressure can damage them over time.
This is why clinicians take hypertension seriously even when you feel “fine.”
Is taking a medication enough?
Sometimes medication is absolutely necessary and appropriate. It can be a life-saving tool.
But here’s the nuance: medication is often not the whole solution.
Why meds can be necessary
If your blood pressure is significantly elevated, you have other risk factors, or lifestyle changes alone aren’t enough, medication can reduce risk while you work on the underlying drivers. But hear me when I say that medication does not treat the root cause of the issue which is many times your lifestyle.
Why meds alone may not be enough
Even when medication improves the number on the cuff, the factors that pushed blood pressure up in the first place are often still present, such as:
Sleep apnea
Insulin resistance and metabolic dysfunction
Low fitness and low muscle mass
High alcohol intake
Chronic stress with poor recovery
A diet high in ultra-processed foods
Addressing these can and often will:
Improve blood pressure further
Reduce the dosage or number of medications needed
Lower overall cardiovascular risk beyond blood pressure alone
Important note if you’re on blood pressure medication: If you start making meaningful health changes (nutrition, weight loss, improved sleep, reduced alcohol, consistent exercise), it’s smart to talk with your prescribing clinician proactively and then throughout your journey. In many cases, as blood pressure improves, medication doses may need to be adjusted.
If someone becomes over-medicated (for example, their blood pressure drops too low for their current dose), they may experience symptoms like lightheadedness, dizziness, fatigue, or feeling faint, which can increase fall risk and generally make people feel awful. Don’t tough it out or stop a medication on your own. Use it as a cue to check in with your clinician.
My take: If you need meds, take them. And also treat a healthy lifestyle like a required part of the prescription.
Common misconceptions
“It’s too much salt.”
Salt gets blamed for everything, but the real story is more nuanced. Yes, some people are more salt-sensitive (meaning their blood pressure rises more noticeably with higher sodium intake). Salt sensitivity is more common with:
Older age
Chronic kidney disease
Certain genetic backgrounds
Higher baseline blood pressure
Poor metabolic health
But for many people, the bigger issue isn’t “you used the salt shaker.” It’s the combination of:
Overall diet quality (lots of ultra-processed foods and restaurant meals)
Low potassium intake (potassium helps counterbalance sodium’s effects)
Low fiber intake
Poor metabolic health (insulin resistance, excess visceral fat)
In other words: instead of demonizing salt, focus on the pattern. If most of your sodium is coming from packaged/restaurant foods, lowering those foods and increasing potassium-rich whole foods often helps more than obsessing over every milligram.
“High blood pressure is just stress”
Stress can absolutely raise blood pressure, but you can have a calm life and still have high blood pressure.
Common non-stress contributors include:
Genetics and aging
Sleep apnea or chronically poor sleep
Low activity and low muscle mass
Excess body fat (especially visceral fat)
Alcohol
Diet patterns high in ultra-processed foods
Certain medications or medical conditions
Stress management is helpful, but it’s rarely the only lever.
“If I feel fine, I’m fine.”
High blood pressure is often symptom-free. That’s why checking regularly matters.
A single high reading doesn’t automatically mean you have hypertension, but patterns do.
“Meds fix it, so lifestyle doesn’t matter.”
Blood pressure medication can lower the number, and for many people it can be necessary.
But medication doesn’t always address the reason blood pressure climbed in the first place. If the underlying drivers are still present (sleep apnea, insulin resistance, low fitness, high alcohol intake, ultra-processed diet patterns), your long-term risk is still being shaped by those factors.
The empowering part: you have more control than you think. Lifestyle changes can improve blood pressure, improve overall cardiovascular risk, and sometimes reduce how much medication you need over time (with the support of your provider, of course).
What to do: high-ROI actions that actually help
1) Measure it correctly (home BP basics)
Use a validated upper-arm cuff
Sit quietly for 5 minutes
Feet flat, back supported, arm supported at heart level
Take 2 readings, 1 minute apart
Track patterns over several days or weeks
Home readings can be more representative than a single office reading for many people. Blood pressure is very easy to take and track at home on your own so if you have ever been told you have high blood pressure, this is sometimes to track.
2) Move your body (steps + strength training)
Movement helps blood pressure through multiple mechanisms, including improved vascular function and improved metabolic health.
Aerobic activity (walking, cycling, swimming): can improve the ability of blood vessels to relax and dilate, and it supports heart efficiency.
Strength training: supports lean muscle, improves insulin sensitivity, and helps with body composition changes that often lower blood pressure over time.
More daily movement (steps, breaking up sitting): helps because blood pressure isn’t only about workouts. Your baseline activity level and how much time you spend sedentary matters.
If you’re overwhelmed, start with the simplest version: a daily walk and 2 short strength sessions per week.
3) Prioritize sleep and screen for sleep apnea
If you snore, wake unrefreshed, have morning headaches, or feel tired despite enough hours, ask your clinician about sleep apnea screening. In fact, up to 80% of people who have sleep apnea are undiagnosed. Treating sleep apnea can meaningfully improve blood pressure in many people.
4) Reassess alcohol
Alcohol can raise blood pressure in a dose-dependent way for many people. If BP is elevated, a 2–4 week break is a simple experiment worth trying while measuring your blood pressure.
5) Nutrition basics (without obsessing)
Reduce ultra-processed foods and restaurant meals
Increase potassium-rich foods when appropriate (fruits, beans/lentils, potatoes, leafy greens, yogurt)
Prioritize fiber and protein
Eat a more whole foods based diet
If you have kidney disease or are on certain medications, potassium guidance should be individualized.
Medication overview (high level)
Common medication classes include:
ACE inhibitors / ARBs: relax blood vessels
Calcium channel blockers: relax blood vessels and reduce workload
Thiazide diuretics: reduce fluid volume
Beta blockers: used in specific situations to reduce heart rate, reduce the body’s stress response, and sometimes relax muscle tissue in blood vessels
If you have side effects (dizziness, swelling, unusual fatigue), discuss with your prescriber rather than stopping medication on your own.
Important note: Some blood pressure medications, especially diuretics (like thiazides), can affect nutrient balance over time. Diuretics can increase urinary losses of potassium and sometimes magnesium (and in some cases can lower sodium), which is one reason periodic lab monitoring with your doctor matters. On the flip side, ACE inhibitors and ARBs can sometimes cause potassium to run high, so potassium supplements or potassium-based salt substitutes are not something to add “just because” without guidance. Any side effects of these medications should still be discussed with your prescriber. If you’re on long-term BP meds, it’s smart to review labs regularly with your clinician and personalize supplements rather than guessing.
Bottom line
High blood pressure is common, quiet, and has consequences.
The goal isn’t to live the perfect healthy lifestyle to manage your blood pressure, the goal is to know your numbers, take it seriously, and know what you have control over. Stack the few habits that reliably improve blood pressure and long-term cardiovascular health. If you’re on medication, it can be a smart and necessary tool. And if you’re making positive changes, keep your clinician in the loop because your dose may need to change as your health improves.
Blood pressure can feel overwhelming, but you don’t have to figure it out alone. If you want support building a plan that fits your life, I’d love to chat.
Disclaimer: This article is for educational purposes only and is not medical advice. It does not replace individualized care from your physician or qualified healthcare professional. Do not start, stop, or change any medication based on this article. If you have symptoms of a medical emergency (such as chest pain, shortness of breath, weakness, severe headache, or vision changes), seek emergency care immediately.
RESOURCES:
Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults. Hypertension. 2018.
Comments