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Perimenopause Low Mood: Is It Hormones or Depression? What Helps

Written by the PAUSE+ team  

A flatness that wasn't there before. Less joy in things you used to love. A heaviness you can't quite explain, especially if life otherwise looks fine on paper. If low mood has crept in during your late 30s or 40s, it's worth asking whether hormones are part of the picture — without dismissing how real it feels.

Is low mood a symptom of perimenopause?

Yes. Low mood is a recognised and common perimenopause symptom, and women are more likely to experience depressive symptoms during the menopause transition than before or after it. That doesn't mean every low mood in your 40s is “just hormones” — it means hormones are a genuine, evidence-based factor worth discussing with your GP.

Why does perimenopause cause low mood?

Fluctuating and declining oestrogen affects serotonin and other brain chemicals central to mood regulation. Sleep disruption, night sweats, and the cumulative exhaustion of perimenopause all compound this further. For some women with a history of depression, mood-sensitivity to hormonal shifts (as seen in PMS or postnatal depression) can make perimenopause a higher-risk window.

What does perimenopause low mood feel like?

Our girls describe a flatness or numbness that wasn't there before; losing interest in things that used to bring joy; feeling weepy for no clear reason; a sense of just going through the motions; and, confusingly, feeling this way even when nothing in life has obviously changed.

How long does perimenopause low mood last?

It tends to fluctuate with hormone levels and often improves after the menopause transition, but it shouldn't be endured in silence in the meantime — proper support can make a real difference now.

What helps with perimenopause low mood?

• See your GP: to properly assess whether this is hormonal, clinical depression, or both — and to discuss options including HRT and talking therapies such as CBT.
• Protect your sleep and movement: both have genuine evidence for supporting mood.
• Stay connected: low mood pulls you towards isolation; maintaining contact with people who support you matters.
• Targeted supplement support: adaptogens and nutrients supporting normal psychological function can be part of a wider toolkit — never a substitute for proper assessment and support.

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Frequently asked questions

How do I know if it's perimenopause or depression?

Only a GP can properly assess this, and the two can overlap or coexist. It's worth seeing your GP for a proper assessment rather than guessing, especially if low mood is persistent or affecting your daily life.

Can perimenopause cause depression for the first time?

Women are more likely to experience depressive symptoms during the perimenopause transition, and some experience this for the first time. It's a recognised pattern, not a personal failing.

Does HRT help with low mood?

For some women, HRT improves mood by steadying hormone levels, particularly when low mood is closely linked to other perimenopause symptoms. It's a decision to make with your GP alongside other options.

Related symptoms

• Anxiety
• Mood swings & rage
• Fatigue & exhaustion
• Back to: What is perimenopause?

Sources: NICE and British Menopause Society guidance on menopause and mental health; NHS guidance on depression and menopause. For general information only; not a substitute for personal medical advice. If you're struggling, Samaritans are available free on 116 123.