Menopause brain fog and memory: what the evidence says

Typical experiences include losing words mid-sentence, walking into a room and forgetting why, difficulty multitasking, slower recall of names and trouble concentrating. These can be unsettling, particularly at a demanding stage of life. Objective testing generally shows small changes in some memory functions during the transition, with many women performing normally on tests while feeling less sharp than before.

Oestrogen influences brain regions involved in memory and attention, and fluctuating levels in perimenopause may affect them. Equally important are the knock-on effects: poor sleep from night sweats, low mood and anxiety, pain, stress, and the demands of work and caring. Fatigue and sleep disruption alone can impair concentration markedly. Other medical causes, such as thyroid disease, anaemia, vitamin B12 deficiency and some medicines, can mimic or worsen it.

• Treating night sweats and sleep disturbance, which often improves concentration.

• Regular physical activity, which supports mood, sleep and brain health.

• Managing stress and anxiety, with CBT or other support.

• Practical aids: lists, calendars, routines and doing one thing at a time.

• Limiting alcohol and getting enough rest.

• Reviewing medicines that cause drowsiness or confusion.

Some women report feeling clearer after starting HRT, possibly because sleep and mood improve. Clinical trial evidence for a direct benefit on cognition is limited and mixed, and NICE advises that HRT should not be offered to women specifically to prevent or treat dementia or memory problems. Decisions about HRT should rest on symptoms and overall risks and benefits.

See your GP if memory problems are getting worse, interfere with daily tasks, are noticed by others, start suddenly, come with confusion, personality change, headaches, weakness or visual changes, or if you are worried. They may check bloods for thyroid function, B12, folate, blood count and other causes, and consider mood and sleep. Referral to a memory service is considered where there are concerning features.

Cardiovascular health is closely linked to brain health. Controlling blood pressure, cholesterol and weight, staying physically active, not smoking, moderating alcohol, keeping socially engaged and treating hearing loss all support cognition over the long term.

Small changes reduce the load on memory. Keep one calendar and one list rather than several, put things in the same place each day, set reminders for tasks with deadlines and finish one task before starting another. Take notes in meetings, and ask for key points in writing. Schedule demanding thinking for the time of day when you feel sharpest. If you manage a team or care for others, share the load where possible, because trying to hold everything in your head is the quickest route to feeling overwhelmed. Short walks and regular meals help steady concentration across the day.