You snapped at your teenager over a cereal bowl left on the counter, and the force of it surprised you both. You cried at a commercial. You have been wide awake at three in the morning four nights this week, and when you mentioned feeling off, someone suggested it was probably stress.
It might be stress. But for many women in their 40s, and some in their late 30s, the mood changes can come first, before the hot flashes and while periods are still fairly regular. Perimenopause, the years of hormonal change before periods stop for good, can bring anxiety, irritability that tips into rage, and depression. It is often missed because nobody connects the dots, including the person living it.
This is a transition, not a disorder. It is also a real one, and October 18 is World Menopause Day, a good prompt to take it seriously.
Can perimenopause cause depression?
It can raise the risk, especially of depressive symptoms. A 2016 analysis that pooled 11 studies found that women in perimenopause had about twice the odds of significant depressive symptoms compared with women before it. The same analysis did not find a clear rise in clinical depression itself, which is a useful nuance. For many women, perimenopause depression shows up as feeling low and flat, not like themselves, rather than as a full depressive episode.
For some it does reach that point. At the Pittsburgh site of SWAN, a long-running study of women through midlife, researchers following 221 women found they were two to four times more likely to have an episode of major depression during perimenopause or early postmenopause than before it. A past history of depression was one of the strongest predictors, which matters if you have been through depression before.
Why does perimenopause bring rage and anxiety?
Because several things change at once: your hormones and your sleep, on top of a heavier load at home and work. Hormone levels in perimenopause do not simply decline. They rise and fall, sometimes sharply, and many women notice their mood moving with them. Night sweats and early waking chip away at sleep, and short sleep on its own lowers anyone's patience.
Then there is the load. These years often line up with teenagers at home, parents who need more help, and the most demanding stretch of a career. Irritability that looks like a change in personality is often a nervous system with no slack left in it. And it tends to land hardest on the people closest to you, a partner or the kids, which adds a layer of guilt on top of the irritability itself. If you are the person everyone leans on, the cost of being the strong one tends to show up right here.
All of it is real, and seeing the pieces separately is a far better place to work from than blame.
Why does it so often get missed?
Partly because it starts earlier than people expect, and partly because it looks like ordinary midlife stress. In a national survey by the Menopause Foundation of Canada of 1,023 women aged 40 to 60, close to half (46 per cent) said they felt unprepared for menopause, and 95 per cent reported an average of seven symptoms.
The mental health side is common too. In a 2026 online survey of 1,850 midlife women in British Columbia, mood and other psychosocial symptoms were the most common kind, and more than a third (38 per cent) scored above a screening threshold for depression. A screening score is not the same as having depression, but it is a clear sign of how many women are struggling.
Work is often where it shows. In the Menopause Foundation survey, about a third of working women (32 per cent) said their symptoms hurt their performance, and about a quarter (24 per cent) said they hid their symptoms at work.
It also lasts longer than most women are told. The Society of Obstetricians and Gynaecologists of Canada notes that symptoms last about seven years on average, and for up to a quarter of women they continue into their sixties.
What helps on the medical side?
Start with your family doctor or a menopause clinic, and go in prepared. A few weeks of notes on sleep, mood, your cycle and anything else you are noticing turns a vague complaint into a pattern a clinician can work with. It also helps you say plainly that this is affecting your life, which is the part that tends to get minimized. Useful questions to bring: could this be perimenopause, which options make sense for my health history, and would a referral to a menopause clinic help? If you feel brushed off, it is reasonable to ask again or to seek a second opinion.
Hormone therapy and other medical options are decisions to make with your doctor. As psychotherapists, we do not advise on medication. We do encourage the conversation, because the physical and emotional sides of perimenopause are tangled together, and it is hard to work on one while ignoring the other.
How can therapy help with perimenopause?
Therapy works on the parts that medication does not reach, and one approach has good evidence behind it. In a McMaster University trial of 71 women, a cognitive behavioural therapy program designed for menopause improved depressive symptoms, sleep, and how much hot flashes interfered with daily life, compared with a waitlist. Anxiety did not improve significantly in that trial.
The Menopause Society, in its 2023 statement on non-hormone options, recommends CBT for bothersome hot flashes. Its main effect is on how disruptive hot flashes feel rather than how often they come, which is much of what makes them hard to live with.
Beyond any one program, therapy is a place to work on what this stage of life asks of you: the shifts in identity, the caregiving load, changes in your relationship, grief for what is ending, and what you want the next chapter to hold. Cognitive behavioural therapy is one of the core approaches our therapists use, and our life transitions counselling is built for exactly this kind of change.
When is it time to get support?
Reach out if low mood or anxiety has been there most days for two weeks or more, if your anger is frightening you or hurting the people you love, or if you no longer recognize yourself and it is wearing you down. You do not need a referral, and you do not need to be sure it is perimenopause first.
If you are having thoughts of suicide, call or text 9-8-8 at any time to reach Canada's Suicide Crisis Helpline. If you are in immediate danger, call 911.
Perimenopause and mood: common questions
Is it anxiety, depression or perimenopause?
It can be all three at once, which is why it is so confusing. Perimenopause can bring on anxiety and low mood, and it can also make existing anxiety or depression worse. Tracking mood and sleep alongside your cycle for a few weeks helps you and your doctor see the pattern, and therapy can help whatever the mix turns out to be.
Can perimenopause cause anxiety?
It can contribute to it. Many women notice new or stronger anxiety in their 40s, sometimes as racing thoughts, a sense of dread or trouble sleeping, and anxiety is among the symptoms women report most often during the transition. Anxiety has many causes, so raise it with your doctor rather than assuming it is hormonal.
I've never been an angry person. Why is this happening now?
Because hormone swings and broken sleep both lower your patience, and they tend to arrive in the same years as the heaviest load at home and work. It is not a sign that you have become a different person, and it is very workable once you can see what is driving it.
Why am I so angry at my partner and kids?
Because they are closest, and closeness is where the overflow goes. The people you love are the ones present when your patience runs out, especially at the end of the day. Naming what is happening, protecting sleep where you can, and planning for the hardest hours all help, and so does repairing afterwards.
Will hormone therapy help my mood?
That is a medical question for your family doctor or a menopause clinic, who can weigh hormone therapy and other options against your health history. Whatever you decide, therapy can work alongside it, on the stress, sleep, relationships and life changes that hormones do not touch.
How long does perimenopause last?
Longer than many women expect. The Society of Obstetricians and Gynaecologists of Canada notes that symptoms last about seven years on average, and for some women into their sixties. Mood symptoms vary a great deal from person to person within that window.
Can therapy help with perimenopause?
Yes. Cognitive behavioural therapy designed for menopause has improved depressive symptoms, sleep and how much hot flashes interfere with daily life in a Canadian trial, and The Menopause Society recommends it for bothersome hot flashes. Therapy is also a place to work through the identity and relationship changes this stage brings.
Supporting women through perimenopause is part of our women's mental health work, in Woodbridge, Vaughan, Barrie and online across Ontario. Therapy is private and confidential, and a free 20-minute consultation is an easy place to start.