You’re lying in bed when suddenly your heart feels like it skips a beat.
Then it pounds.
Maybe it races for 20 seconds and settles down. Or you feel a strange flutter in your chest while sitting at your desk, driving, or waking up in the middle of the night.
If you’re in your 40s or early 50s, you might wonder:
Is this perimenopause? Anxiety? My thyroid? Or is something actually wrong with my heart?
Heart palpitations can occur during the menopause transition, and research suggests they are relatively common. Studies have reported palpitations in as many as 20% to 42% of perimenopausal women, although prevalence estimates vary depending on how symptoms are measured.
But there is an important distinction:
Being in perimenopause does not automatically mean your palpitations are caused by hormones.
Thyroid dysfunction, anemia, medications, stimulants, electrolyte abnormalities, sleep disruption, stress, and true cardiac arrhythmias can produce very similar sensations. Current clinical guidance recommends evaluating recurrent or concerning palpitations rather than assuming they are simply another menopause symptom.
The goal is not to panic every time your heart feels different.
It is to understand what your body is telling you and determine whether hormones are part of the picture or whether something else deserves attention.
What Do Heart Palpitations Feel Like?
A palpitation is an unusual or heightened awareness of your heartbeat.
You might describe it as:
- Heart racing
- Pounding in your chest
- Fluttering
- A skipped beat
- An extra beat
- A sudden “thump”
- Heart beating harder than normal
- An irregular rhythm
- Pulsing in your chest, neck, or throat
Sometimes the actual heart rhythm is abnormal.
Other times, monitoring shows a normal rhythm even though the sensation of palpitations is very real.
That is one reason symptoms alone usually cannot tell you exactly what is happening.
Are Heart Palpitations Common During Perimenopause?
Yes.
Palpitations are increasingly recognized as one of the symptoms women may experience across the menopause transition.
A review of the research found reported prevalence rates of approximately 20% to 42% in perimenopausal women and 16% to 54% in postmenopausal women.
Research has also found relationships between palpitations and other common menopause-related complaints, including:
- More severe hot flashes
- Night sweats
- Poorer sleep
- Lower physical activity
- Reduced quality of life
However, researchers emphasize that menopause-related palpitations remain understudied compared with symptoms such as hot flashes. The biological relationship between reproductive hormones and palpitations is not completely understood.
In other words:
The association is real, but we should be careful about saying estrogen is always the cause.
Why Can Perimenopause Affect Your Heartbeat?
Perimenopause is not simply a period of steadily declining estrogen.
Hormone production becomes increasingly variable.
Estrogen may rise sharply during one cycle and fall during another. Ovulation becomes less consistent. Progesterone exposure may change as ovulatory cycles become less predictable.
At the same time, changes are occurring in systems that influence:
- Body temperature
- Blood vessel function
- Sleep
- Stress responses
- Autonomic nervous system activity
- Heart rate
This may help explain why some women suddenly become much more aware of their heartbeat during their 40s.
Estrogen and the Cardiovascular System
Estrogen interacts with cardiovascular and nervous-system pathways throughout the body.
During perimenopause, fluctuations in reproductive hormones occur alongside changes in vascular and autonomic regulation.
That matters because your autonomic nervous system helps control functions you do not consciously manage, including:
- Heart rate
- Blood pressure
- Sweating
- Body temperature
- Blood vessel dilation and constriction
Research examining hot flashes has demonstrated measurable changes in heart rate and autonomic activity during these episodes.
That may be one reason some women notice that a palpitation happens immediately before, during, or after a hot flash.
Hot Flashes and Palpitations Can Travel Together
Imagine this sequence:
You wake up suddenly at 2:30 a.m.
You feel warm.
Your heart starts pounding.
You begin sweating.
Then the episode passes.
Was it your heart?
Hormones?
An adrenaline response?
A hot flash?
Possibly a combination.
Research has found that worse vasomotor symptoms, including hot flashes and night sweats, are among the factors most consistently associated with menopausal palpitations.
That still does not mean every episode should automatically be attributed to menopause.
Could Your Thyroid Be Causing the Palpitations?
Absolutely.
The overlap between thyroid symptoms and perimenopause is one of the reasons these cases can become confusing.
Hyperthyroidism
When the thyroid produces excessive thyroid hormone, your metabolism and cardiovascular system can become overstimulated.
Symptoms may include:
- Racing heartbeat
- Irregular heartbeat
- Palpitations
- Feeling unusually hot
- Excessive sweating
- Tremors
- Anxiety or nervousness
- Difficulty sleeping
- Unexplained weight loss
- More frequent bowel movements
- Menstrual changes
The American Thyroid Association specifically identifies a racing or irregular heartbeat as a common symptom of hyperthyroidism.
Notice how much overlap exists with perimenopause.
Hot?
Sweaty?
Anxious?
Sleeping poorly?
Periods changing?
Heart racing?
Those symptoms could easily be labeled “hormonal” without ever checking thyroid function.
Thyroiditis Can Also Trigger Palpitations
Certain forms of thyroiditis can temporarily release excess thyroid hormone into the bloodstream.
During this thyrotoxic phase, symptoms can include anxiety, insomnia, fatigue, irritability, weight loss, and palpitations.
What About Hypothyroidism?
An underactive thyroid more commonly causes a slower heart rate rather than a racing heartbeat.
Typical symptoms can include:
- Fatigue
- Cold intolerance
- Weight gain
- Constipation
- Dry skin
- Reduced exercise tolerance
- Brain fog
However, thyroid disease can still influence cardiovascular function, and people taking thyroid medication can experience symptoms if their dose produces excessive thyroid hormone levels.
The point is simple:
You cannot reliably diagnose thyroid function based on symptoms alone.
Blood testing matters.
Hormones vs. Thyroid: How Can You Tell the Difference?
There is no symptom checklist that can reliably separate the two.
Consider how much overlap exists:
| Symptom | Perimenopause | Hyperthyroidism |
|---|---|---|
| Heart palpitations | Possible | Common |
| Heat intolerance | Possible | Common |
| Sweating | Possible | Common |
| Anxiety | Possible | Possible |
| Sleep disruption | Common | Common |
| Menstrual changes | Common | Possible |
| Fatigue | Common | Possible |
| Weight changes | Possible | Possible |
| Tremor | Less typical | More suggestive |
| Frequent bowel movements | Less typical | More suggestive |
This is why testing can be more useful than guessing.
What Else Causes Heart Palpitations in Women Over 40?
Hormones and thyroid function are only two possibilities.
1. Premature Heartbeats
Premature atrial contractions and premature ventricular contractions can feel like:
skip…THUMP.
They are common and are often benign, particularly in people without structural heart disease.
But frequent or new symptoms may still warrant evaluation.
2. Atrial Fibrillation or Other Arrhythmias
Certain rhythm abnormalities can produce:
- Racing heartbeat
- Irregular heartbeat
- Fluttering
- Shortness of breath
- Weakness
- Dizziness
- Reduced exercise tolerance
Palpitations should not automatically be labeled hormonal when an arrhythmia could be present.
The American Heart Association notes that palpitations can occur with rhythm disorders including atrial fibrillation.
3. Anemia
If your body does not have enough healthy red blood cells to deliver oxygen effectively, the cardiovascular system may compensate by increasing heart rate.
This can create:
- Palpitations
- Fatigue
- Shortness of breath
- Weakness
- Exercise intolerance
This is particularly relevant during perimenopause because some women experience heavier or more prolonged periods as cycles change.
Clinical evaluation of palpitations commonly includes a complete blood count to look for anemia.
4. Caffeine
That extra coffee may have felt harmless at 30.
At 45, especially after a poor night of sleep, it may feel very different.
Coffee, energy drinks, pre-workout products, certain teas, and other stimulants can contribute to palpitations in susceptible individuals.
Your total dose matters, but so does your individual sensitivity.
5. Alcohol
Alcohol may affect sleep, hydration, autonomic function, and heart rhythm.
Some people notice palpitations during or several hours after drinking, particularly overnight.
If episodes consistently happen after wine or cocktails, that pattern is worth documenting.
6. Decongestants and Other Medications
Certain medications and supplements can increase heart rate or make palpitations more noticeable.
Examples may include:
- Stimulant medications
- Some decongestants
- Certain asthma medications
- Excess thyroid replacement
- Weight-loss stimulants
- High-stimulant pre-workout supplements
Always review prescription medications, over-the-counter products, and supplements with your clinician rather than stopping prescribed treatment on your own.
7. Electrolyte Abnormalities
The electrical activity of your heart depends partly on minerals such as potassium and magnesium.
Significant electrolyte abnormalities may interfere with normal electrical signaling.
Potential contributors include:
- Vomiting or diarrhea
- Certain medications
- Kidney disease
- Heavy sweating
- Inadequate nutrition
- Significant fluid losses
Clinical palpitation evaluations may include electrolyte testing when appropriate.
8. Stress and Anxiety
Anxiety can absolutely make your heart race.
The problem comes when every unexplained palpitation is immediately dismissed as anxiety.
Stress activates your sympathetic nervous system, increasing adrenaline and potentially raising heart rate.
But anxiety can also occur because your heart suddenly started racing.
A thorough evaluation looks at both possibilities instead of assuming one explains the other.
9. Poor Sleep
Sleep disruption becomes increasingly common during perimenopause.
Night sweats, changing hormones, stress, sleep apnea, alcohol, and other factors can all fragment sleep.
Research examining menopausal palpitations has found that worse sleep is associated with more palpitations.
That does not necessarily mean poor sleep directly causes every episode, but the relationship makes sleep an important part of the clinical picture.
The Pattern of Your Palpitations Matters
Before your appointment, pay attention to exactly what is happening.
Instead of simply writing:
“Heart racing.”
Record:
When did it happen?
Morning? After dinner? At 3 a.m.?
How long did it last?
Five seconds? Five minutes? An hour?
What were you doing?
Exercising? Lying down? Working? Drinking coffee?
What did it feel like?
Fluttering? Skipping? Rapid and regular? Rapid and irregular?
What else happened?
Hot flash? Sweating? Shortness of breath? Chest discomfort? Dizziness?
Where are you in your cycle?
If your periods are still occurring, menstrual patterns may provide additional context.
What did you consume beforehand?
Alcohol? Caffeine? Pre-workout? Supplements?
Patterns often tell you more than an isolated symptom.
What Testing May Be Considered for Heart Palpitations?
Testing should be individualized based on your symptoms, history, medications, risk factors, and physical examination.
A clinician may consider several layers of evaluation.
1. Medical History and Physical Examination
This should come before ordering a massive panel of tests.
Important questions include:
- When did symptoms begin?
- How frequently do they occur?
- How long do they last?
- What triggers them?
- Do they occur during exercise?
- Do they wake you from sleep?
- Is there chest pain?
- Is there dizziness or fainting?
- Is there a history of heart disease?
- Is there a family history of dangerous arrhythmias or sudden cardiac death?
- What medications and supplements are you taking?
2. Electrocardiogram
A standard 12-lead ECG can identify certain rhythm abnormalities and electrical conduction problems.
Current primary-care guidance identifies ECG as an important part of the evaluation of patients presenting with palpitations.
One limitation?
Your ECG may look perfectly normal if the palpitation is not happening at that moment.
3. Ambulatory Heart Monitoring
If symptoms come and go, your clinician may recommend longer monitoring.
Depending on frequency, this could include a:
- Holter monitor
- Multi-day patch monitor
- Event monitor
- Longer-term rhythm monitor
The goal is to answer an important question:
What is your heart actually doing when you feel the symptom?
4. Thyroid Testing
A thyroid evaluation may include:
- TSH
- Free T4
Additional thyroid testing may be appropriate depending on the clinical picture.
The American Thyroid Association notes that TSH, T4, T3, and thyroid antibodies may be used when evaluating suspected hyperthyroidism depending on the circumstances.
The important point is not to order every possible thyroid marker for everyone.
Testing should answer a clinical question.
5. Complete Blood Count
A CBC may help identify anemia or other abnormalities.
This can be particularly relevant for women experiencing heavy menstrual bleeding.
6. Iron Status
If anemia, heavy periods, fatigue, hair shedding, or reduced exercise tolerance are part of the picture, iron status may deserve further evaluation.
A normal hemoglobin value does not answer every question about iron stores.
The exact testing should be determined by your clinician based on your symptoms and history.
7. Electrolytes and Metabolic Markers
Depending on the situation, testing may assess:
- Potassium
- Sodium
- Calcium
- Kidney function
- Other metabolic markers
Again, the goal is targeted evaluation rather than ordering more tests simply because more testing exists.
Where Does Hormone Testing Fit In?
This is where expectations need to be realistic.
Perimenopause is a dynamic hormonal transition.
One hormone measurement represents one point in time.
Estradiol and other reproductive hormones can fluctuate significantly across cycles, which means a single value should not be treated as a complete explanation for symptoms.
Your clinical history matters enormously:
- Has cycle length changed?
- Are periods becoming irregular?
- Have hot flashes appeared?
- Are you waking with night sweats?
- Has sleep changed?
- Are symptoms cyclical?
- Are there changes in bleeding?
- What other symptoms developed at the same time?
Laboratory testing can provide useful context in selected cases, but it should complement your history rather than replace it.
A Functional Approach: Do Not Stop at “It’s Just Hormones”
One of the most frustrating experiences for women in midlife is being told:
“That’s normal for your age.”
Some changes may indeed relate to perimenopause.
That does not mean you should stop investigating.
A more complete evaluation asks several questions simultaneously:
Could reproductive hormone changes be contributing?
Has thyroid function been assessed?
Could iron deficiency or anemia be involved?
Could medications, stimulants, supplements, alcohol, or sleep disruption be contributing?
Do the symptoms suggest an actual cardiac rhythm abnormality that requires additional evaluation?
At 1st Optimal, the goal of functional testing is not simply to generate more laboratory data.
It is to build a clearer picture of what may be driving the symptoms, while recognizing when cardiovascular evaluation or specialty care may be appropriate.
The best answer is not always “hormones.”
It is the explanation best supported by your history, examination, testing, and objective data.
Does Hormone Replacement Therapy Stop Heart Palpitations?
Not necessarily.
Some women report improvement in palpitations when other menopausal symptoms improve, particularly when hot flashes and sleep disruption are also addressed.
A systematic review evaluating treatments for menopausal palpitations found some evidence suggesting certain hormonal therapies, including estradiol, might reduce palpitation frequency or severity in some women.
However, the researchers concluded that the evidence remains limited and that no treatment could be strongly recommended specifically for menopausal palpitations based on the existing research.
That is an important distinction.
Heart palpitations by themselves are not a reason to assume you need hormone therapy.
Whether menopausal hormone therapy is appropriate depends on your:
- Menopause symptoms
- Age
- Medical history
- Cardiovascular history
- Breast health history
- Risk factors
- Treatment goals
- Individual contraindications
The underlying cause of the palpitations should still be evaluated.
Can Lifestyle Changes Help?
When serious or treatable causes have been appropriately evaluated, certain habits may help reduce triggers.
Track Your Caffeine
You do not necessarily need to eliminate coffee forever.
Instead, test your response.
Does reducing caffeine change the frequency of palpitations?
Pay Attention to Alcohol
Notice whether symptoms reliably occur during the night after drinking.
That pattern can be informative.
Prioritize Sleep
Addressing poor sleep may mean looking beyond “sleep hygiene.”
Consider:
- Night sweats
- Sleep apnea
- Stress
- Alcohol
- Caffeine timing
- Restless legs
- Medication effects
- Bedroom environment
Maintain Hydration
Fluid needs vary, particularly with exercise, heat exposure, illness, and medications.
Exercise Consistently
Regular physical activity supports cardiovascular and metabolic health.
Interestingly, lower physical activity was one of the factors associated with palpitations in a review of women transitioning through menopause.
If palpitations occur specifically during exercise, however, talk with your clinician before simply pushing harder.
Look at the Entire Pattern
Instead of asking:
“What supplement stops palpitations?”
Ask:
“Why am I having them?”
Those are very different questions.
When Should You Worry About Heart Palpitations?
Many palpitations are benign.
Some are not.
Seek prompt medical evaluation when palpitations are:
- New or significantly different
- Becoming more frequent
- Lasting longer than usual
- Affecting your quality of life
- Associated with exercise
- Accompanied by significant dizziness
- Associated with near-fainting or fainting
The American Heart Association recommends urgent evaluation when palpitations occur with concerning symptoms such as chest pain, shortness of breath, dizziness, or fainting.
Call 911 for Possible Emergency Symptoms
Seek emergency medical help for symptoms such as:
- Chest pain or pressure
- Severe shortness of breath
- Fainting
- Symptoms concerning for a heart attack
- Sudden severe weakness or neurologic symptoms
Do not assume these symptoms are “just menopause.”
The Bottom Line
Heart palpitations during perimenopause are common.
Hormonal fluctuations and the physiologic changes surrounding hot flashes, sleep disruption, and autonomic nervous-system activity may contribute.
But that is only one part of the differential.
Palpitations may also reflect:
- Hyperthyroidism
- Thyroid medication issues
- Anemia
- Iron deficiency
- Stimulants
- Medication effects
- Electrolyte abnormalities
- Stress
- Sleep disruption
- Premature heartbeats
- Atrial fibrillation
- Other arrhythmias
The most useful question is not:
“Are my palpitations hormonal?”
It is:
“What does the complete pattern of my symptoms, health history, and objective testing tell us?”
Perimenopause can explain a lot.
It should not become an excuse to stop looking.
Frequently Asked Questions
Can perimenopause cause heart palpitations?
Palpitations are commonly reported during perimenopause, with studies reporting them in approximately 20% to 42% of perimenopausal women. The exact biological mechanisms are still being studied, and not every palpitation occurring during perimenopause is caused by hormonal changes.
What do hormonal heart palpitations feel like?
Women may describe a racing heart, pounding, fluttering, skipped beats, extra beats, or a sudden awareness of their heartbeat. These sensations are not specific to hormonal changes, so symptoms alone cannot reliably determine the cause.
Can low estrogen cause heart palpitations?
Palpitations occur more frequently around the menopause transition, when estrogen patterns are changing substantially. However, current research does not support reducing the explanation to simply “low estrogen.” Hormonal fluctuations, vasomotor symptoms, autonomic nervous-system changes, sleep, and other factors may all contribute.
Can thyroid problems feel like perimenopause?
Yes. Hyperthyroidism can cause palpitations, heat intolerance, sweating, anxiety, insomnia, menstrual changes, and weight changes, several of which overlap with perimenopause symptoms. Blood testing can help differentiate thyroid dysfunction from menopause-related symptoms.
Should I have my thyroid checked if I have palpitations?
Thyroid testing is commonly considered as part of a clinical evaluation for unexplained or recurrent palpitations. The specific tests you need depend on your medical history and symptoms.
Can anxiety cause heart palpitations during perimenopause?
Yes. Stress and anxiety can activate the sympathetic nervous system and increase heart rate. But anxiety should not automatically be assumed to be the cause of new palpitations. Medical causes should be considered based on your symptoms and risk factors.
Are heart palpitations during menopause dangerous?
Many palpitations are not dangerous, but some can represent an abnormal heart rhythm. Recurrent, persistent, exercise-related, or worsening palpitations should be discussed with a healthcare professional, particularly when associated with dizziness, fainting, shortness of breath, or chest discomfort.
Will HRT stop perimenopause heart palpitations?
Not necessarily. Limited evidence suggests certain hormonal therapies may improve palpitations in some women, but current research is not strong enough to recommend hormone therapy specifically as a treatment for menopausal palpitations.
References
- Carpenter JS, et al. Correlates of palpitations during menopause: A scoping review. Women’s Health. 2022.
- Sheng Y, et al. Effect of Menopausal Symptom Treatment Options on Palpitations: A Systematic Review.
- Gauer RL, Thomas MF, McNutt RA. Palpitations: Evaluation, Management, and Wearable Smart Devices. American Family Physician. 2024.
- American Thyroid Association. Hyperthyroidism.
- American Thyroid Association. Thyroiditis.
- American Heart Association. How Serious Are Heart Palpitations? Causes, Symptoms and When to Worry. 2026.
- American Heart Association. Symptoms, Diagnosis and Monitoring of Arrhythmia.
