29/10/2025
Brain fog in perimenopause is not joke and you’re not imagining it. Up to two-thirds of women experience cognitive changes, often described as “foggy thinking,” word-finding issues, or forgetfulness.
Multiple factors contribute to brain fog:
- Fluctuating estrogen levels affect brain regions involved in memory, attention, and processing speed. Neurotransmitters like acetylcholine, noradrenaline and dopamine are affected.
- Other symptoms compound the problem — sleep disruption, night sweats, mood changes, and chronic stress
- Perimenopause also coincides with high life load, which increases the mental load on women
These changes are typically temporary and non-progressive, meaning they’re not a risk (that we know of yet) from dementia or neurodegenerative disease - but they can definitely feel like it!! Temporary is also a tricky word … it’s not forever but even a few months can significantly impact quality of life.
There are some evidence-based ways to support cognition include:
- Regular physical activity – aerobic and strength training improve brain blood flow and neuroplasticity.
- Optimising sleep improves memory and concentration.
- Stress management – mindfulness, therapy, and relaxation techniques reduce cognitive load.
- Structured supports – lists, reminders, and routine reduce working memory strain.
- A Mediterranean-style diet rich in fish, olive oil, vegetables, and whole grains supports brain health.
- Hormone therapy – can hugely reduce brain fog both directly and also indirectly by reducing sleep disturbance, anxiety, and vasomotor symptoms
-A medical review for other possible contributing factors like thyroid and nutritional deficiencies
- Creatine!
Cognitive changes during perimenopause are real, common, and reversible for most women. Addressing contributing factors and optimising overall health can significantly improve clarity and focus. If you’re experiencing brain fog, visit the Pause clinic. We can’t wait to meet you!