The Perimenopause Brain: Estrogen, Brain Fog, Libido, ADHD & Why You’re Not Losing Your Mind

In this episode of On the ’Mones, Kate Thomas, pharmacist, midlife woman, and professional oversharer, tackles one of the most distressing and misunderstood parts of perimenopause: what’s actually happening to your brain.If you’ve found yourself forgetting words, losing focus, feeling anxious “for no reason,” questioning whether you suddenly have ADHD in your 40s, or quietly Googling early-onset dementia at 2am, this episode is for you.Because here’s the truth:You are not stupid. You are not lazy. And you are not losing your mind. Your estrogen has simply stopped doing its full-time job.Kate explains how estrogen functions as the brain’s unseen office manager, coordinating dopamine, serotonin and acetylcholine, and what happens when that system starts running on skeleton staff. The result? Brain fog, anxiety, poor memory, emotional volatility, sleep disruption, and a sudden collapse in cognitive resilience.This episode covers:What estrogen actually does in the brain (spoiler: it’s not just about reproduction)Why brain fog feels cognitive, not emotionalHow perimenopause can unmask ADHD traits in midlife womenThe critical differences between brain fog, anxiety and burnoutWhy treating hormonal symptoms with productivity hacks or “just manage stress” advice backfiresThe role of sleep loss as a cognitive and emotional multiplierWhat estrogen therapy can, and can’t, do for cognitionWhere SSRIs, SNRIs, stimulants and off-label menopause medications do fit (and where they don’t)Kate also shares a brutally honest story from a midlife dinner party that spirals into a candid conversation about libido, testosterone therapy, HSDD, and the unequal way men’s and women’s sexual health is treated in medicine, including why prescribing Viagra or Cialis without considering the partner is clinically short-sighted.And in this week’s Woo of the Week, Kate takes a hard look at black cohosh:What it is (and what it definitely isn’t)What randomised controlled trials and Cochrane reviews actually showWhy “natural” doesn’t mean effectiveAnd how oversold supplements cost women time, money and confidenceIf you’ve ever felt gaslit by your own body, dismissed by well-meaning advice, or ashamed of changes you couldn’t explain, this episode gives you language, biology, and relief.Because desire, clarity and resilience aren’t personality traits. They’re physiological processes, and they deserve real information, real medicine, and real conversations.You’re not broken.You’re early to the conversation.Whether you are in perimenopause, approaching menopause, or simply trying to understand your hormones, I've got you. Read more about topics in this episode: www.medicationclarity.com.au