Anxiety and mood in perimenopause: the hormonal link

You feel more on edge than before. The slightest thing irritates you, a worry grips you by the throat in the evening, or a wave of sadness settles in without your being able to tie it to any specific event. You may be wondering whether you are “changing character”, or even whether something is wrong with you. Let it be said clearly: these feelings are real, they are common in perimenopause, and they have a biological explanation. The transition to menopause does not affect only the body; it also touches mood, and studies have confirmed it for twenty years. Understanding this link already means no longer blaming yourself, and giving yourself the means to act.

Let us start with a useful distinction: this article is about mood (irritability, anxiety, low spirits), not the famous “brain fog” that concerns memory and concentration. They are two different realities of perimenopause, often confused, and each deserves its own attention.

Why hormones influence mood

Estrogen does not regulate only the menstrual cycle. In the brain, it interacts with the serotonin, dopamine and GABA circuits: the same chemical systems involved in regulating mood, anxiety and well-being. As long as its level remains relatively stable, that balance holds. But perimenopause is not a gentle, linear decline in hormones: it is a period of sometimes brutal fluctuations, in which estrogen rises and falls unpredictably over a few weeks. It is precisely this instability, more than the low level itself, that seems to destabilize mood.

Research supports this idea. In the Penn Ovarian Aging study, which followed women for several years with no history of depression whatsoever, entering the menopausal transition was associated with a higher risk of depressed mood, and variations in reproductive hormones accompanied these mood changes^[1]. In other words, it is not a personal fragility: it is a temporary biological vulnerability, tied to the shifting hormonal terrain of this period.

What studies show about depression risk

This is one of the most important, and most destigmatizing, messages of recent research: perimenopause is a genuine window of vulnerability for mood. Two large American studies published the same year established it convergently. In the Harvard Study of Moods and Cycles, women who had never suffered from depression were about twice as likely to develop significant depressive symptoms when they entered perimenopause, compared with those who remained premenopausal^[2]. The Penn Ovarian Aging study reached a similar conclusion^[1].

The vast SWAN study (Study of Women's Health Across the Nation), which followed thousands of women of diverse backgrounds for a decade, confirmed this increased risk: the risk of a major depressive episode was higher in perimenopause and postmenopause than in premenopause, independently of depressive history, difficult life events and hot flashes^[3]. These studies do not mean that “menopause makes you depressed”: the majority of women get through this period without depression. But they officially recognize that the risk rises, which at last legitimizes a suffering long minimized.

And anxiety?

Sad mood is not the only one concerned. Many women mostly describe a new or amplified anxiety: inner tension, a racing heart, rumination, the feeling of being “on alert” for no reason. Here again, science validates this experience. In the SWAN study, the risk of high anxiety levels increased over the menopausal transition, including in women who were not particularly anxious at the start^[4]. Anxiety tended to peak in perimenopause before ebbing afterwards, which suggests a largely transient phenomenon, tied to the period of hormonal upheaval.

Irritability, that feeling of having “a short fuse”, often stems from the same mechanism: when the neurochemical balance wavers, tolerance for stress and annoyances drops. It is not a failure of will or a problem of temperament: it is a physiological response to an unstable hormonal environment.

What really helps

Move, sleep, stay connected

Everyday levers have a real effect, and it is better not to underestimate them. Physical activity is one of the best documented: a synthesis of randomized controlled trials showed that exercise significantly reduces depressive and anxiety symptoms in women in the menopausal transition and menopause, with a clear benefit even at low to moderate intensity^[6]. No need for performance: brisk walking, swimming, dancing or cycling, several times a week, are enough to make a difference.

Sleep also plays a central role. Night awakenings, often linked to sweats, keep a vicious circle going: the less you sleep, the more mood and anxiety deteriorate. Protecting your sleep (regular hours, a cool bedroom, limiting screens and alcohol in the evening) is therefore a mental health measure in its own right. Finally, social support matters: putting words on what you are going through, with trusted loved ones or other women living the same thing, reduces the sense of isolation and shame that often worsens distress.

When and why to seek help

Everyday measures have their limits, and there is no shame in needing more. Some signals call for prompt consultation: sadness or a loss of interest lasting most of the time for more than two weeks, marked sleep or appetite disturbances, anxiety that interferes with work or relationships, a feeling of hopelessness and, all the more so, dark thoughts. These manifestations deserve the attention of a doctor or a mental health professional, exactly like any other health symptom.

The expert recommendations published by the North American Menopause Society (NAMS) and the NNDC network, specifically devoted to perimenopausal depression, note that several approaches have proven themselves: structured psychotherapies such as cognitive behavioral therapy (CBT), antidepressants (which remain the reference treatment for characterized depression), and, in some situations, menopause hormone therapy, which can help with mood symptoms, especially when hot flashes are also present^[5]. The choice depends on each woman's profile, on the severity of the symptoms and on her history. It is a decision made with a professional, never alone.

On that subject, a clinical trial even suggested a prevention avenue: in women in the menopausal transition, transdermal estradiol (combined with progesterone) for twelve months halved the appearance of new depressive symptoms compared with a placebo^[7]. A promising avenue, but one that calls for an individual medical evaluation, not self-prescription.

Above all, remember this: what you are feeling is neither imaginary nor a weakness of character. It is a recognized biological stage, most often transient, and real solutions exist. Taking care of your mood in perimenopause is not a luxury: it is a full component of your health. And if your suffering becomes significant, invasive or lasting, above all in the presence of dark thoughts, do not wait: talk to a doctor or a health professional, who can support you and offer appropriate help.

⚠️ This article is provided for informational and educational purposes only. It does not replace medical advice, diagnosis or treatment. Always consult your doctor or a qualified health professional with any questions about your health. In case of significant psychological distress or dark thoughts, talk to a health professional without delay. You can also call a crisis line, free and open day and night: 988 in Canada and the United States, 3114 in France. In a life-threatening emergency, call 911 in Canada, or 15 or 112 in France.

How we work: our editorial method · Written and verified by Bouchra, editorial lead.