Menopause: who is this woman in the mirror?

Let's say it plainly: what you feel is real and documented. That new reactivity, the sudden tears, the irritability that surprises you all have a biological basis ^[1][5]. Researchers even describe a "changed sense of self" during perimenopause ^[2].

The mechanism fits one image. When your body makes progesterone, it converts some of it into allopregnanolone (a calming molecule). It acts on your GABA system, the brain's natural brake, like a cushion between you and stress ^[5].

In perimenopause, progesterone drops and turns erratic. That cushion vanishes at times, without warning ^[5]. Suddenly the sharp comment, the queue, the dishes left out: everything hits you full force, unabsorbed.

You're not overreacting because you're defective. You react harder because a calming filter grew scarce. That's chemistry, not character.

Progesterone isn't the only one at play. Estrogen helps your brain make serotonin and dopamine, the chemicals behind mood, pleasure and motivation ^[5]. When its level rides a rollercoaster, those circuits misfire.

Here's the key point: it's not so much the lack of hormones that shakes you, it's the fluctuation. Sharp, unpredictable swings throw the brain off far more than the decline itself ^[10]. That's why you can feel entirely yourself one day and lost the next.

Then comes the fog: words that won't come, memory blanks. It's real and measurable, tied to falling estrogen, and it usually eases once the transition passes ^[8].

Finally, your hormones and cortisol (the stress hormone) are linked. When they fluctuate, your alarm system fires faster ^[1]. You recover more slowly and feel swamped by things you used to absorb with ease.

The little voice saying you're the only one not coping is wrong. Many women in perimenopause report irritability, new anxiety and emotional ups and downs ^[3].

Above all, the risk of a depressive episode is two to four times higher during the transition than before, including in women with no prior history ^[4]. Specialists call it a "window of vulnerability": a stretch when the brain is temporarily more reactive ^[7].

This transition is not a bad week. Perimenopause often lasts four to eight years ^[11]. It's a genuine season of life that deserves to be taken seriously.

Menopause was long reduced to hot flashes, brushing aside the emotional side. The data say otherwise. If a doctor, a partner or your inner critic called you "too much", that's a script that hasn't caught up with the science.

Understanding the mechanism already puts you a step ahead. One simple move helps today: note your mood, anxiety and energy each day. Formal evidence for tracking is limited, but in practice it helps you spot patterns and feel less overwhelmed.

After a few weeks, the chaos takes shape: a dip that returns at a point in your cycle, irritability clustering around poor sleep. You move from enduring to understanding. That data is also valuable for your doctor: harder to dismiss you with evidence in hand.

You have other levers too, to discuss with a healthcare professional:

• Regular physical activity, which can support mood and sleep ^[9].
• Cognitive behavioral therapy (CBT), recognized for easing the anxiety and distress of this stage ^[2].
• Menopausal hormone therapy (MHT), a validated option that can improve mood ^[6][9].

One line still matters: telling passing waves from a darkness that settles in. If sadness lingers, if nothing feels meaningful, or if dark thoughts appear, talk to a doctor without waiting. That's not weakness, it's strength. In France, 3114 (the national suicide prevention line) is free, confidential and available 24/7.