Does high blood pressure make you tired? The usual causes to check

Short answer

High blood pressure by itself usually doesn't make you feel tired: most of the time, it causes no symptoms at all. The American Heart Association calls it a "silent killer" for exactly that reason (1).

But tiredness and high blood pressure often show up together, for reasons worth checking. The most common ones are sleep apnea, which is found in 30–50% of people with high blood pressure (4); side effects of blood pressure medicines, mainly beta-blockers (5); long-term damage to the heart or kidneys; and very high readings that need urgent care.

If you're exhausted and your readings are high, it's not your fault and you're not overreacting. It's a reason to look for the cause, not to push harder.

Note: this article is for general education and is not medical advice. Call 911 if your blood pressure is higher than 180/120 mm Hg and you have new symptoms such as chest pain, shortness of breath, weakness or confusion. Never stop or change blood pressure medicine without talking to your doctor. This guide is published by Welltory, which makes one of the apps mentioned. Welltory is a general wellness product: it does not measure blood pressure and does not diagnose or treat any condition.

Why high blood pressure usually has no symptoms

Blood pressure is the force of blood pushing against your artery walls. When it's high, the extra force slowly strains your blood vessels, heart, kidneys and brain. That damage builds over years, and in most people it doesn't produce a feeling you'd notice day to day.

The AHA is direct about this: with high blood pressure, "most of the time, there are none" when it comes to symptoms, and waiting for symptoms is risky (1). It also busts some common myths (1):

• Headaches and nosebleeds. "The best evidence indicates that high blood pressure does not cause headaches or nosebleeds." A severe headache or nosebleed when you feel unwell is still a reason to contact a health professional, and with a reading of 180/120 or higher it's a reason to call 911.

• Facial flushing. It happens in people without high blood pressure just as often.

• Dizziness. It can be a side effect of some blood pressure medicines, and sudden dizziness should never be ignored.

So if you feel tired, high blood pressure on its own is an unlikely explanation. The useful question is: what else is going on that both drains you and travels with high blood pressure?

Five reasons people with high blood pressure feel tired

Sleep apnea

This is the first thing to check. Obstructive sleep apnea means your airway repeatedly narrows or closes during sleep. Each pause in breathing briefly wakes your brain and spikes your blood pressure. Over time, it's linked with high blood pressure during the day too.

According to an American Heart Association scientific statement, sleep apnea is present in 30–50% of people with high blood pressure and in up to 80% of people whose high blood pressure is hard to control with medicines (4). Its signs include loud snoring, pauses in breathing that a partner notices, broken sleep and daytime sleepiness (4).

That's the pattern behind many "I'm always tired and my blood pressure is high" stories: the same problem can drive both. Our guide to a sleep apnea test explains how it's diagnosed, including at home.

Blood pressure medicines

Some blood pressure medicines can cause tiredness, especially in the first weeks or after a dose change.

Beta-blockers (such as metoprolol, atenolol and propranolol) have the best-studied link. A review of 15 large trials with more than 35,000 people, published in JAMA, found a small but real increase in reported fatigue: about 18 extra reports per 1,000 people treated per year, or one extra person with fatigue for every 57 people treated for a year (5). Older beta-blockers caused more fatigue than newer ones. The authors stressed that this risk is small compared with the documented benefits of these medicines (5).

Other medicines. Each blood pressure medicine has its own side effect list. Dizziness, especially when standing up, is common across several types and can feel like tiredness. Your pharmacist can tell you which effects are listed for the exact medicine you take.

Blood pressure lowered faster than your body is used to. Some people feel washed out for a while when their readings come down, especially if they've been high for a long time. Tell your doctor; don't adjust the dose yourself.

If you train with a heart rate monitor, beta-blockers also change what your heart rate can reach; see how medications change your heart rate zones.

Damage to the heart or kidneys over time

Years of uncontrolled high blood pressure can damage the heart and kidneys. Conditions that can follow, such as heart failure and chronic kidney disease, often do cause fatigue, along with shortness of breath, swelling in the legs or changes in urination. This isn't the usual reason someone with newly found high blood pressure feels tired, but it's important if your blood pressure has been high for years or you have other symptoms.

A hypertensive crisis

Very high blood pressure can cause symptoms. If a reading is above 180/120 mm Hg, the AHA advises waiting and retesting; if it stays that high and you have symptoms such as chest pain, shortness of breath, weakness or confusion, call 911 (3). Sudden weakness or confusion isn't ordinary tiredness.

Shared causes that drive both

Many everyday things raise blood pressure and drain energy at the same time: short or broken sleep, chronic stress, heavy drinking, a lot of caffeine, being inactive, and carrying extra weight. They're not a verdict on you. They're places to start. Our article on what causes high blood pressure covers them in more detail.

What your blood pressure numbers mean

Notice what's missing from this table: a "tired" column. Your energy can't tell you which row you're in. Only a cuff can.

How to check whether your tiredness is linked to blood pressure

A simple two-week check gives you and your doctor something real to look at.

1. Use a validated upper-arm cuff. The AHA recommends an automatic upper-arm monitor; wrist and finger monitors aren't recommended (3). Our guide to choosing a home blood pressure monitor goes through options.

2. Prepare the same way each time. No caffeine, smoking or exercise for 30 minutes before; empty your bladder; sit with your back supported, feet flat, arm resting at heart level; rest quietly for five minutes (3).

3. Take two readings, one minute apart, morning and evening, and write both down (3).

4. Rate your energy once a day, for example 1 to 5 in the afternoon.

5. Note your sleep. Hours, how often you woke, whether anyone heard you snore or stop breathing.

6. Note medicine changes. The date of any new medicine or dose change.

7. After two weeks, look across the columns. Do tired days follow short or broken nights? Did tiredness start with a new medicine? Are your readings high regardless of how you feel?

Common mistakes

• Using tiredness as a blood pressure gauge. Feeling fine doesn't mean your blood pressure is fine, and feeling tired doesn't mean it's high.

• Stopping a blood pressure medicine because it makes you tired. Talk to your doctor, who can look at the dose, timing or other options.

• Skipping the snoring question. Sleep apnea is common in people with high blood pressure, and it can be treated once it's diagnosed.

• Fighting fatigue with lots of coffee or energy drinks. Caffeine can affect your readings for a while (that's why the AHA advises avoiding it for 30 minutes before measuring) and can worsen sleep.

• Measuring right after coffee, a cigarette or a walk. Wait 30 minutes.

• Trusting one reading. Look at the pattern over days.

Living with high blood pressure and fatigue: the questions people ask next

Can high blood pressure cause fatigue and dizziness?

High blood pressure itself rarely causes either. Dizziness can be a side effect of some blood pressure medicines, and sudden dizziness should never be ignored (1). If you feel dizzy when you stand, tell your doctor; your dose may need a review.

Does blood pressure medication make you tired?

Some can. Beta-blockers have the clearest link, but the extra risk is small: about one additional person with fatigue for every 57 treated for a year in trials (5). Other medicines can cause dizziness or tiredness in some people. Don't stop on your own; ask your doctor about alternatives.

Is metoprolol known for causing fatigue?

Metoprolol is a beta-blocker, the group with the best-studied link to fatigue. Newer beta-blockers caused less fatigue than older ones in the JAMA review (5). If fatigue is a problem, your doctor can consider the dose, timing or a different medicine.

Why am I so tired after my blood pressure came down?

Some people feel washed out for a while when their readings drop, especially after starting a new medicine. If you also feel light-headed when standing, your blood pressure may be lower than your body is used to. Tell your doctor rather than changing the dose yourself.

Does low blood pressure make you tired too?

It can. Blood pressure that's too low, or drops when you stand, can cause tiredness, dizziness and fainting. If your home readings are low and you feel unwell, talk to your doctor.

Can stress cause both high blood pressure and fatigue?

Ongoing stress can push both in the wrong direction, mostly by hurting sleep and the habits that follow. It's one of the shared causes worth looking at, along with sleep apnea and medicines.

Before you blame yourself

Maybe you got a high reading at the pharmacy, you've been dragging all month, and the story in your head is: I'm out of shape and lazy, and now my blood pressure shows it. Before you blame yourself, look at what your body already recorded.

Tiredness with high blood pressure often has a visible cause. Short or broken nights show up in sleep data. A resting heart rate that sits higher than usual, or heart rate variability (HRV) that stays low, can point to strain from poor sleep, stress or illness. A new medicine has a start date. None of that is a character flaw.

Pick one lever for one to two weeks. For example, keep a steady bedtime and take your cuff readings at the same time each morning, with one note next to each: hours slept, and whether anyone heard you snore. After two weeks, look at the pattern. You may find that your most tired days follow your worst nights, which is exactly the clue that leads many people to a sleep apnea test. Or you'll have a clean log that makes your next appointment much more useful.

When to see a doctor

Call 911 if your blood pressure is higher than 180/120 mm Hg and you have new symptoms such as chest pain, shortness of breath, weakness or confusion (3).

Contact your clinician immediately if a reading is above 180/120 and stays that high when you retest after a short rest, even without symptoms (3).

Book an appointment if:

• your home readings are often in the elevated range or higher (2);

• you snore loudly, someone has noticed you stop breathing in your sleep, or you're sleepy during the day (4);

• tiredness started after a new blood pressure medicine or a dose change;

• you feel light-headed when standing, or have fainted;

• you're short of breath with everyday activity, your legs swell, or your urination has changed.

How to bring this up with your doctor

What to ask, by name. "Could I have sleep apnea? Should I do a sleep study?" "Could my [medicine name] be causing this tiredness, and is there an alternative?" "Should we check my kidney function and do blood tests for anemia or thyroid?"

What to bring. Your cuff, so they can compare it with the office reading. Two weeks of readings with dates and times. A list of all medicines and supplements with start dates. Your energy and sleep notes. Our guide to a blood pressure log for your doctor shows a simple format.

What to say, out loud. "My home readings average about [number] in the morning. I've been exhausted most afternoons for [weeks], and my partner says I snore and sometimes stop breathing."

If you're told tiredness isn't related to blood pressure. That may be right. Follow up with: "Then what else should we check? Would a sleep study make sense?"

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How Welltory helps — and what it cannot do

The limits first. Welltory is a general wellness product, not a medical device. Welltory cannot take blood pressure readings, with the camera or in any other way; you need a blood pressure monitor (6). It does not diagnose high blood pressure or sleep apnea and doesn't tell you whether to change a medicine.

What it can do is keep your cuff readings next to the rest of your day:

Bring in readings from your cuff. Readings from cuffs that sync with Apple Health, Health Connect or Samsung Health can flow into Welltory, some monitors connect directly, and you can enter top and bottom numbers by hand (6).

See trends and a log. A full blood pressure analysis is available free for the first three days. After that, unlimited blood pressure analytics and the monthly blood pressure log you can print or share with your doctor need a paid Premium subscription; check the price and renewal terms in the app before you subscribe (6).

Heart rate and HRV next to your readings. You can take a short HRV spot reading with your phone's camera and flash; it's not continuous monitoring, doesn't measure blood pressure and doesn't work on Google Pixel phones (7). Apple Watch and Samsung Watch can send HRV data; Fitbit, Garmin, Oura and Pixel Watch are marked for activity tracking (8).

Notes on what happened in My Patterns. On iOS, when Welltory spots a stress or recovery episode, you can tag what happened, like "bad night" or "new medicine", so you can later see what tends to come before your more tired days (9).

How we made it

We based this article on the American Heart Association's pages on high blood pressure symptoms, blood pressure categories and home monitoring, the American Heart Association's 2021 scientific statement on obstructive sleep apnea and cardiovascular disease, and a meta-analysis of beta-blocker trials published in JAMA. Search questions came from what people in the United States most often ask about high blood pressure and tiredness. For the product section, we checked every function against the Welltory Help Center on November 8, 2026.

Made with AI tools, then edited and fact-checked by the Welltory team. See our Editorial & AI policy.

Jane Smorodnikova, co-founder of Welltory, built the methodology behind how we read physiological data.

Written by Tatsiana Yashyna.

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