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Brain fog, mood and anxiety in perimenopause

How hormonal change can affect thinking and feeling, and the practical and medical support that helps.

Perimenopause can change how you think and feel as much as how your body works. Brain fog, forgetfulness, low mood, irritability and new anxiety are among the most commonly reported symptoms, and they often overlap with broken sleep.

This guide brings together our articles on the mental and emotional side of the transition: what may be going on, what tends to help, and when to speak to a doctor. If your mood is very low or you have thoughts of harming yourself, contact your doctor or an urgent support line straight away.

Articles in this guide

Other guides

Perimenopause basics: what it is, stages and how long it lasts · Brain fog, mood and anxiety in perimenopause · Perimenopause sleep problems and night sweats · Hot flashes, aches and body changes in perimenopause · Irregular periods and cycle changes in perimenopause · Perimenopause treatment: HRT and other options · Perimenopause lifestyle and self-advocacy · Symptom dictionary · Toolkit

General information about perimenopause. Not a substitute for personal medical advice. Editorial standards · Disclaimer · Privacy · Terms