You already know the usual suspects: salt shakers at the dinner table, a sedentary desk job, and the stress that comes with a jam-packed calendar. But for many people, blood pressure readings creep up even when they have cut back on chips, exercise regularly, and feel reasonably calm. The truth is, hypertension is rarely caused by one thing. It is a complex condition influenced by factors that fly under most people's radar.
As a health editor who has written about heart health for years, I have seen readers time and again who are doing everything "right" but still see the systolic number climb. If that sounds like you, it is not your fault. Here are three common causes of high blood pressure that surprise most people — and what you can actually do about them.
1. Over-the-counter pain relievers (yes, the ones you probably have in your purse or drawer)
Nonsteroidal anti-inflammatory drugs, or NSAIDs, are among the most widely used medications on the planet. You reach for them when your back aches, your knee flares up, or a headache threatens to ruin your afternoon. But these pills can quietly raise blood pressure by causing the body to retain sodium and fluid, and by narrowing the blood vessels themselves. Research consistently shows that regular use of drugs like ibuprofen (Advil, Motrin) and naproxen (Aleve) can bump systolic pressure by a few points — enough to push someone from prehypertension into the danger zone.
Acetaminophen (Tylenol) is often thought of as a safer alternative for blood pressure, and it generally is, but no medication is risk-free if taken daily. The advice here is not to live in pain. It is to be aware. If you find yourself reaching for pain relievers more than twice a week, talk to your doctor about alternatives, such as physical therapy, topical creams, or other strategies that do not stress your cardiovascular system.
A quiet insight: Many people do not think of an occasional pill as a "medication." But your body treats it as one. Even intermittent NSAID use can interfere with blood pressure control.
2. Sleep apnea (not just snoring — a mechanical problem that taxes the heart)
Obstructive sleep apnea is surprisingly common and wildly underdiagnosed. When a person has sleep apnea, the airway collapses repeatedly during the night, cutting off oxygen for seconds or even minutes at a time. Each time this happens, the brain jolts the body into a mini-alert state to restart breathing. This triggers a surge of stress hormones — adrenaline and cortisol — that spike blood pressure over and over again. By morning, the heart has essentially run a marathon in bed.
Most people with sleep apnea do not realize they have it. They may snore loudly, wake up gasping, or feel exhausted despite spending eight hours in bed. But many others simply think they are "light sleepers" or "not morning people." The connection to high blood pressure is so well established that many sleep clinics now partner directly with cardiology departments.
If you have treatment-resistant hypertension — meaning blood pressure that does not respond well to three or more medications — sleep apnea could be the hidden driver. A home sleep study is often all it takes to get a diagnosis, and treatment with a CPAP machine can lower blood pressure as effectively as adding another drug.
3. Hidden sodium in foods that do not taste salty
We all know to avoid potato chips and pretzels. But the real sodium bombs are often the foods that taste neutral, sweet, or even bland. Think about a slice of whole-wheat bread from a bakery, a bowl of instant oatmeal, a container of low-fat cottage cheese, and a bottled salad dressing. None of these taste salty, yet each can pack 200 to 500 milligrams of sodium per serving. It adds up fast.
Processed and restaurant foods account for about 70 percent of the sodium in the average American diet. The salt shaker at home is rarely the main culprit. Surprising sources include canned soups, deli meats, frozen dinners, pasta sauces, and many breakfast cereals. Even "healthy" items like vegetable juice or canned beans with added salt can quietly push your daily total past the American Heart Association's ideal limit of 1,500 milligrams.
The fix is not to eat a tasteless diet. It is to read labels with intention. Look for "no salt added" or "low sodium" versions of staples. Rinse canned beans and vegetables before cooking. And when you eat out, ask for sauces and dressings on the side — the kitchen will usually cut the sodium by a third or more.
If you are managing high blood pressure and feel like you have tried everything, step back and look at these three areas. Your medicine cabinet, your pillow, and your pantry may hold clues that your doctor's office has never asked about. Small changes in these unexpected places can bring real, measurable improvement to your heart health.
