Perimenopause panic attacks affect 18–33% of women in their 40s, many with no prior anxiety history. The mechanism is the progesterone–allopregnanolone–GABA chain failing: when progesterone falls, the brain's primary calming system loses power. This article explains the neuroscience behind why panic hits out of nowhere — including at night — and covers what the evidence actually shows about CBT, hormone therapy, and immediate interventions.

Perimenopause doesn't just disrupt sleep — it restructures it. Declining progesterone removes a natural brain sedative called allopregnanolone. Erratic estrogen fragments deep sleep and triggers night sweats that cause micro-arousals you may not remember. A 2023 meta-analysis found insomnia is the most prevalent menopausal symptom globally. Cathy covers the science of what's happening to your sleep architecture, CBT-I evidence, magnesium, and what actually helps.