One of the most common reasons women seek menopause support is simple: they are exhausted.
Not the kind of tiredness that disappears after a good night’s sleep, but persistent fatigue that affects work, family life, exercise, relationships and overall wellbeing.
Many women describe feeling as though their energy has “vanished overnight”. Tasks that once felt manageable suddenly feel overwhelming. Motivation drops, concentration becomes harder and recovery after exercise takes longer.
While fatigue can occur at any stage of life, it is particularly common during perimenopause and menopause. Understanding why it happens is the first step towards finding effective solutions.
Why Does Menopause Cause Fatigue?
Fatigue during menopause is rarely caused by a single factor. Instead, it is usually the result of several hormonal, physical and lifestyle changes occurring simultaneously.
The most common contributors include:
- Fluctuating oestrogen levels
- Declining progesterone
- Sleep disruption
- Night sweats
- Increased stress hormones
- Heavy menstrual bleeding
- Nutritional deficiencies
- Thyroid dysfunction
- Insulin resistance
- Mood changes and anxiety
For many women, these factors interact and amplify one another.
Hormonal Fluctuations and Energy Levels
During perimenopause, hormone levels fluctuate unpredictably.
Oestrogen influences numerous systems within the body, including:
- Energy production
- Mood regulation
- Sleep quality
- Blood sugar control
- Cognitive function
When oestrogen fluctuates significantly, women may experience:
- Sudden energy crashes
- Brain fog
- Reduced motivation
- Difficulty concentrating
- Increased feelings of overwhelm
Progesterone also affects sleep and relaxation. As progesterone declines, sleep quality often worsens, contributing further to daytime fatigue [1].
Sleep Disruption: The Hidden Cause of Fatigue
Poor sleep is one of the biggest contributors to menopause-related tiredness.
Common menopause-related sleep disruptors include:
- Night sweats
- Hot flushes
- Anxiety
- Frequent waking
- Difficulty falling asleep
- Early morning waking
Even when women spend sufficient hours in bed, fragmented sleep can prevent the restorative deep sleep needed for recovery.
Over time, chronic sleep deprivation affects:
- Memory
- Mood
- Immune function
- Metabolism
- Cardiovascular health
Heavy Periods and Iron Deficiency
Many women experience heavier or more frequent periods during perimenopause.
Excessive blood loss can lead to low iron stores and iron deficiency anaemia, both of which commonly cause:
- Extreme fatigue
- Breathlessness
- Dizziness
- Reduced exercise tolerance
- Brain fog
If fatigue is persistent, blood tests may be appropriate to assess iron levels and overall health.
Could It Be Your Thyroid?
Symptoms of thyroid dysfunction can closely resemble menopause symptoms.
An underactive thyroid may cause:
- Fatigue
- Weight gain
- Low mood
- Dry skin
- Hair loss
- Poor concentration
Because thyroid problems become more common in midlife women, they should be considered when evaluating ongoing fatigue [2].
The Role of Stress and Cortisol
Many women enter perimenopause during one of the busiest periods of their lives.
Career pressures, caring responsibilities, ageing parents, financial commitments and relationship demands can all increase stress.
Long-term stress affects cortisol regulation, which can contribute to:
- Sleep problems
- Increased anxiety
- Blood sugar instability
- Persistent tiredness
This is why menopause care should consider both hormones and lifestyle factors.
Vitamin D, B12 and Nutritional Deficiencies
Deficiencies in certain nutrients can contribute significantly to fatigue.
Common examples include:
- Vitamin D deficiency
- Vitamin B12 deficiency
- Folate deficiency
- Iron deficiency
These nutrients are essential for energy production, nervous system function and overall wellbeing.
A balanced diet rich in protein, vegetables, healthy fats and fibre provides the foundation for good energy levels.
Can HRT Help Menopause Fatigue?
For some women, menopausal hormone therapy (MHT or HRT) can improve energy indirectly by addressing underlying symptoms such as:
- Night sweats
- Poor sleep
- Anxiety
- Mood changes
- Vasomotor symptoms
HRT is not a treatment specifically for fatigue, but improving hormonal stability can often have a positive effect on overall wellbeing [3].
Practical Ways to Improve Energy During Menopause
Simple strategies that may help include:
Prioritise Sleep
Maintain a consistent sleep schedule and create a cool sleeping environment.
Eat Protein Regularly
Protein helps stabilise blood sugar and supports muscle health.
Strength Training
Resistance exercise improves energy, metabolic health and mood.
Manage Stress
Mindfulness, CBT, yoga and relaxation techniques can be valuable.
Stay Hydrated
Even mild dehydration can worsen fatigue and headaches.
Seek Professional Advice
Persistent tiredness should never be dismissed as “just menopause.”
When Should You Seek Help?
Speak to a healthcare professional if:
- Fatigue is affecting daily life
- Symptoms persist despite lifestyle changes
- You experience dizziness or breathlessness
- You have significant sleep problems
- You are concerned about thyroid or nutritional deficiencies
Support at The Menopause Medic
At The Menopause Medic, we take a holistic approach to menopause fatigue. We investigate potential contributing factors and develop personalised treatment plans to help women regain their energy and quality of life.
Consultations are available in Berkhamsted and St Albans, with remote appointments and convenient at-home blood-testing solutions across Hertfordshire and the UK. [1]
References
[1] NICE. Menopause: Diagnosis and Management (NG23)
https://www.nice.org.uk/guidance/ng23
[2] NHS. Underactive Thyroid (Hypothyroidism)
https://www.nhs.uk/conditions/underactive-thyroid-hypothyroidism/
[3] British Menopause Society. Tools for Clinicians
https://thebms.org.uk/publications/tools-for-clinicians/