In France, nearly 17 million people suffer from hypertension, representing approximately 30% of adults (Grave et al., 2025). A large portion of them are unaware they are ill and that the chronic exhaustion they experience daily is one of the first warning signs. Hypertension and fatigue have a physiological connection that science is increasingly documenting, and this is what we will explore in this article.
Hypertension and fatigue: what is the link?
What is high blood pressure?
High blood pressure (HBP) is a cardiovascular disease characterized by an abnormal increase in blood pressure in the arteries.
For information, blood pressure is the force exerted by the blood against the walls of the arteries when your heart pumps to supply your entire body.
We speak of hypertension when blood pressure is greater than or equal to 14/9 (140/90 mmHg), after several readings taken at rest.
The diagnosis can be confirmed by self-measurement at home or by 24-hour ambulatory blood pressure monitoring (ABPM). For comparison, optimal blood pressure is around 12/8 (120/80 mmHg).
When left untreated, hypertension increases the risk of cardiovascular diseases, kidney failure, and strokes (CVA). Women have a higher risk after menopause, due to declining estrogen levels.
How does hypertension cause fatigue?
Faced with high vascular resistance, your heart must work harder to ensure normal blood circulation. This prolonged effort can promote left ventricular hypertrophy and gradually reduce your exercise tolerance. (Yildiz et al., 2020).
Over time, hypertension can make your blood vessels stiffer or narrower. This situation limits blood circulation and reduces the supply of oxygen and nutrients to muscles and organs. This is why muscle fatigue sets in faster during physical activities in hypertensive individuals (Thurston et al., 2024).
Fatigue as a warning sign
Fatigue can sometimes be an initial subtle indicator of high blood pressure, even if it is not specific to this condition.
This unusual fatigue can last several months, even years, before a diagnosis is made during a medical examination. Sometimes, this feeling of exhaustion is associated with other symptoms, including headaches, dizziness, vision problems, or chest pain.
Common causes of fatigue in hypertensive individuals
1. Untreated or poorly managed hypertension
When your blood pressure remains high without appropriate management, your heart is forced to work harder to overcome vascular resistance. This chronic overload can, depending on the stage of hypertension, lead to progressive cardiac remodeling that compromises your exercise capacity and generates persistent fatigue.
2. Side effects of antihypertensive treatments
Certain blood pressure medications, depending on their type (beta-blockers, diuretics, or calcium channel blockers), can induce fatigue as a side effect, by reducing cardiac output or causing potassium and magnesium depletion (Shantsila et al., 2024). If you experience these effects, talk to your doctor to adjust your treatment.
3. Stress and lack of sleep
Chronic stress keeps your body in a prolonged state of alert by increasing hormones such as cortisol. This hormonal imbalance disrupts your sleep and reduces your cognitive abilities. Mental and physical fatigue then reinforce each other, making it difficult to control your blood pressure. Sleep apnea, frequently associated with hypertension, aggravates this vicious cycle by fragmenting nocturnal rest and activating the sympathetic nervous system.
4. Poor lifestyle
A diet rich in salt (sodium) and low in potassium increases the risk of hypertension. Added to this is a sedentary lifestyle, which gradually reduces your cardiovascular capacity: effort becomes more strenuous and fatigue sets in earlier. Finally, excessive alcohol or caffeine consumption can dehydrate your body and impair the quality of your sleep, two factors that maintain chronic fatigue.
How to recognize fatigue related to hypertension?
Physical signs
Fatigue related to hypertension primarily manifests during exertion: unusual shortness of breath for moderate effort, early sensation of muscle exhaustion, heavy legs, constant lack of energy even after rest.
Psychological signs
Hypertension-related fatigue is not limited to the body. Difficulty concentrating, irritability, brain fog, and decreased motivation can accompany or precede physical signs. These manifestations result from less efficient cerebral blood flow and prolonged activation of the sympathetic nervous system, which depletes your mental resources in the long term.
When to consult a doctor?
It is advisable to consult a healthcare professional if:
- fatigue lasts several weeks
- it is associated with frequent headaches, vision problems, or dizziness
- you experience chest pain or palpitations
- you have a family history of hypertension
- your measured blood pressure exceeds 140/90 mmHg
In case of blood pressure above 180/120 mmHg accompanied by these symptoms, seek emergency medical attention: it may be a hypertensive crisis.
Solutions to reduce hypertension-related fatigue
1. Adjust your antihypertensive treatment
Consult your doctor if you experience persistent fatigue after starting a hypertension treatment. A dose adjustment or a change in medication can improve your energy while keeping your blood pressure under control.
2. Improve your lifestyle
Adopt a varied and balanced diet, prioritizing plenty of fruits and vegetables according to WHO recommendations. Consume foods rich in potassium (spinach, sweet potatoes, bananas) and magnesium (almonds, legumes).
3. Manage daily stress
Relaxation techniques such as cardiac coherence, mindfulness meditation, or yoga can help reduce your stress level and blood pressure by acting on the parasympathetic nervous system (Ponte Márquez et al., 2019).
4. Regularly monitor your blood pressure
Daily self-measurement in the morning and evening, over several consecutive days, allows for the detection of any blood pressure elevation and prompt adjustment of your treatment, thereby limiting fatigue and cardiovascular complications.
Prevention: good habits to avoid fatigue and hypertension
- Limit your salt intake to less than 5g per day and prioritize sources of potassium and magnesium.
- Engage in 30 minutes of moderate physical activity five times a week, avoiding intense isometric efforts.
- Limit your alcohol consumption to one drink per day and quit smoking, which aggravates arterial stiffness.
- Maintain good daily hydration by drinking regularly.
- Sleep 7 to 8 hours per night : lack of sleep raises nocturnal blood pressure and amplifies daytime fatigue.
- Measure your blood pressure at home regularly and report any side effects of your treatment to your doctor.
FAQ – Hypertension and fatigue
Does hypertension always cause fatigue?
No, hypertension does not systematically cause fatigue. Many hypertensive individuals remain asymptomatic for years. However, it can appear gradually when blood pressure remains high for a long time or when the heart is under prolonged strain.
Can fatigue indicate an overly strong treatment?
Yes. Unusual fatigue after starting antihypertensive treatment can signal an overdose or induced hypotension. In case of dizziness, significant weakness, or fainting upon standing, consult your doctor to adjust your treatment.
Can you exercise if you are hypertensive and fatigued?
Yes, moderate and regular physical activity is recommended. Start with 10 to 15 minutes of daily walking, then gradually increase. Avoid intense and sudden efforts. If your blood pressure exceeds 180/120 mmHg, consult your doctor before starting any exercise program.
What foods help lower blood pressure?
Foods rich in potassium (bananas, spinach, sweet potatoes), magnesium (almonds, avocados…), and natural nitrates (beets) help lower blood pressure. Fatty fish rich in omega-3, whole grains, and garlic also help control blood pressure.
Bibliography
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Kowalski, S., Goniewicz, K., Moskal, A., Al-Wathinani, A. M., & Goniewicz, M. (2023). Symptoms in Hypertensive Patients Presented to the Emergency Medical Service: A Comprehensive Retrospective Analysis in Clinical Settings. Journal of clinical medicine, 12(17), 5495. https://doi.org/10.3390/jcm12175495
Shiina K. (2024). Obstructive sleep apnea -related hypertension: a review of the literature and clinical management strategy. Hypertension research : official journal of the Japanese Society of Hypertension, 47(11), 3085–3098. https://doi.org/10.1038/s41440-024-01852-y
World Health Organization. (2025, September 25). Hypertension [Fact sheet]. World Health Organization. https://www.who.int/news-room/fact-sheets/detail/hypertension
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Yildiz, M., Oktay, A. A., Stewart, M. H., Milani, R. V., Ventura, H. O., & Lavie, C. J. (2020). Left ventricular hypertrophy and hypertension. Progress in Cardiovascular Diseases, 63(1), 10–21. https://pubmed.ncbi.nlm.nih.gov/31759953/
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Ponte Márquez, P. H., Feliu-Soler, A., Solé-Villa, M. J., Matas-Pericas, L., Filella-Agullo, D., Ruiz-Herrerias, M., Soler-Ribaudi, J., Roca-Cusachs Coll, A., & Arroyo-Díaz, J. A. (2019). Benefits of mindfulness meditation in reducing blood pressure and stress in patients with arterial hypertension. Journal of human hypertension, 33(3), 237–247. https://doi.org/10.1038/s41371-018-0130-6
