Fatigue

Fatigue

Why your energy levels can change during perimenopause.

Feeling constantly tired, even after a full night’s sleep, is one of the most common and frustrating symptoms of perimenopause. Many women describe it as a deep, ongoing exhaustion that affects concentration, motivation, and daily life. This persistent fatigue often stems from hormonal changes, disrupted sleep, and the many physical and emotional demands of midlife.

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Why Fatigue Happens During Perimenopause

As estrogen levels fluctuate, the hormones that help regulate sleep, mood, and energy also shift. Estrogen influences serotonin and norepinephrine, two brain chemicals that support restful sleep and emotional balance, and it helps keep body temperature lower at night. When estrogen declines, these systems can become disrupted, leading to poor sleep and daytime tiredness.

Hot flushes and night sweats can make this worse, waking you up multiple times a night and leaving you feeling drained the next day. Over time, the combination of disrupted sleep, hormonal imbalance, and daily responsibilities can result in chronic fatigue.

Other factors that may contribute include:

  • Stress or anxiety

  • Poor sleep hygiene

  • Irregular diet or dehydration

  • Lack of exercise

  • Underlying medical conditions such as thyroid issues or sleep apnoea

  • Mental health changes such as depression or low mood

What Fatigue Feels Like

Perimenopausal fatigue often goes beyond normal tiredness. It can feel like:

  • A persistent lack of energy or motivation
  • Difficulty concentrating or remembering things
  • Trouble staying awake or alert during the day
  • Irritability or low mood
  • Physical heaviness or muscle weakness
  • Feeling emotionally flat or detached

Even small tasks can start to feel overwhelming when fatigue builds up.

Managing Fatigue

While perimenopause fatigue can be challenging, there are effective ways to improve energy and sleep quality:

  • Prioritise sleep hygiene: Go to bed and wake up at the same time each day, and create a calm, dark, and cool sleep environment.

  • Stay active: Regular exercise improves energy levels, reduces stress, and promotes deeper sleep. Aim for at least 150 minutes of moderate activity per week.

  • Eat balanced meals: Choose whole foods, lean protein, and plenty of vegetables. Avoid heavy meals, caffeine, and alcohol before bed.

  • Stay hydrated: Dehydration can worsen fatigue and headaches. Aim for steady water intake throughout the day.

  • Manage stress: Techniques such as mindfulness, yoga, journaling, or gentle meditation can help reduce mental tension that interferes with sleep.

  • Create a bedtime routine: Wind down with relaxing activities like reading, stretching, or listening to calming music before bed.

If sleep disruption or fatigue continues, your doctor may discuss:

  • Hormone therapy (MHT) to help stabilise estrogen and improve sleep patterns

  • Cognitive behavioural therapy (CBT) to manage negative thought patterns and reduce anxiety or insomnia

Other medical treatments for underlying causes such as thyroid disorders or depression.

If fatigue is affecting your daily life, book a Telehealth consultation with a WellFemme menopause doctor today.

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