07/15/2026
Personally, when my estrogen shifted in my 40s, one clue was that my focus and mental sharpness were impacted.
This was based on a true story 😅. I told my son no electronics for a couple of weeks and when he asked me a week later to remind him why, my mind went blank.
Clearly, hormone fluctuations can have a real impact on how your brain function!
Why does brain fog happen in perimenopause?
-Estrogen supports the hippocampus, the part of your brain involved in learning and memory. As estrogen fluctuates, recalling names, words, or why you walked into a room can become more difficult.
-Poor sleep from night sweats, insomnia, or frequent awakenings makes it harder for your brain to form and retrieve memories.
-Progesterone changes can increase anxiety or reduce restorative sleep, making concentration feel like a full-time job.
-Cortisol can become more dysregulated during perimenopause. Chronic stress doesn’t just affect your mood, it affects memory and focus too.
-Thyroid plays a huge role here too. Optimal thyroid levels can protect neurons, help with neuron regeneration, and support communication between the different neurons.
One of the things I ask my patients as part of tracking HRT benefits and progress is how is your memory, focus and ability to recall?
For me, getting my hormones dialed in and using certain peptide support like Dihexa and Semax helps cognitive health, memory and focus—especially when I have mentally demaning days. And when I’m not on top it…well, situations like these happen.
It may be time to pull out the brain puzzles, or it’s actually time to dial in the hormones. 🧩
And if your kid asks, “Wait…am I still grounded?”
Don’t admit you forgot. Just look them straight in the eye and say, “You know what you did.” 😏