Can perimenopause cause anxiety?

Yes — anxiety is a genuine and common symptom of perimenopause, even in women who've never been anxious before. It's hormonal, not “all in your head.”

The main driver is fluctuating oestrogen and falling progesterone. Oestrogen influences serotonin and other mood chemicals, so when it swings unpredictably, emotional regulation wobbles with it. Progesterone has a naturally calming effect on the brain (it supports GABA, the same system many anti-anxiety medications target) — so as progesterone declines, that built-in brake weakens, leaving many women feeling on edge, restless, or hit by sudden waves of worry or even panic. Broken sleep and early-hours cortisol surges make it worse.

What catches women off guard is how new and physical it can feel: a racing heart, a tight chest, or 3am dread, often without an obvious trigger. Recognising it as a hormonal pattern — rather than a personal failing — is itself a relief for many.

What to do: the foundations genuinely help — protect your sleep, get daylight and movement, limit alcohol and caffeine (both amplify anxiety), and build in real downtime. For many women, HRT eases perimenopausal anxiety by steadying oestrogen and replacing progesterone; ask your GP whether it's right for you. And if anxiety is severe or persistent, raise it specifically — effective help exists, and you don't have to white-knuckle through it.