How to Talk to Your Daughter About Her Period (When You’re in Perimenopause)

She’s getting her first period. You’re losing yours.

Two generations, one massive hormonal shift. Let’s talk about how to make this moment empowering, not overwhelming.
Now more than ever, it’s time to talk openly. Girls are getting their periods earlier, and both generations are feeling the impact – physically, emotionally, and mentally¹. Let’s unpack what’s happening, why it matters, and how to have the talk that supports you both.

Why the period talk can’t wait

Research shows that the average age of first menstruation has dropped from 12.5 years in the 1950s to 11.9 years for girls born between 2000 and 2005². The number of girls starting before age 11 has nearly doubled²—and even more are experiencing “very early” menarche (before age 9)³.

What’s more? Periods are taking longer to regulate. Only 56% of girls had regular cycles within two years, compared to 76% in the 1960s². Early menarche and delayed cycle regulation are linked to increased risks of cardiovascular disease and reproductive issues later in life⁴.

Only 56% of girls had regular cycles within two years, compared to 76% in the 1960s²

Why are periods starting younger?

Childhood obesity now accounts for around half of this trend³.
Stress, environmental exposures, and modern diets are playing a big role too⁵.
These changes can bring mood swings, confusion, and physical symptoms even in early puberty.

When PMS isn’t just PMS

Most girls experience cramps, fatigue, or a bit of bloating. But about 1 in 10 face Premenstrual Dysphoric Disorder (PMDD), a condition far more intense⁶. Symptoms can include:

Severe depression or anxiety
Hopelessness or suicidal thoughts
Mood swings, irritability, or panic attacks
Brain fog, memory issues, joint pain, and bloating⁷

PMDD is real, diagnosable, and treatable. If your daughter shows these signs, it’s time to talk to a professional⁸.

The science of brain hormones: From puberty to perimenopause

Hormonal shifts don’t just affect your uterus—they affect your brain. According to Prof. Jayashri Kulkarni, there are three key hormonal shifts that impact brain function⁹:

Menarche (first period): Emotional reactivity, anxiety, and mood swings may show up—even in kids—as a result of sudden hormonal surges.
Pregnancy & postpartum (we’ll save that for another blog).
Perimenopause: Starting around age 45, this transition can bring depression, anxiety, and brain fog before any physical symptoms appear¹⁰.

Menopause starts in the brain... Depression around this time is common and debilitating. – Prof. Jayashri Kulkarni⁹

Real talk: how to talk to your daughter about periods

Start Early
Before age 10 if possible, given today’s trends².
Keep It Casual
Think car rides, skincare routines, or walking the dog. Drop the drama.
Normalise It
Remind her this is a completely natural part of growing up—and something to be proud of, not ashamed.
Talk “Normal” – and Not-So-Normal
Irregular cycles and mood changes? Normal. Debilitating anxiety or pain? Let’s talk to someone about it.
Share Your Story
Yes, even the awkward bits. If you’re also dealing with brain fog and night sweats, share that too. It builds connection and mutual support.

Final Thoughts

This is a powerful time to connect, grow, and support one another. By staying informed, honest, and open, you’re giving your daughter more than just information, you’re giving her confidence. And maybe, just maybe, she’ll grow up thinking periods are powerful, not painful.

Hey Sister! is a world-first, clinically proven, fast-acting natural solution for period pain and PMS relief. We empower women through every life stage with evidence-based, plant-powered therapeutics. Our mission? To break taboos, offer evidence-based solutions, and create a world where no woman suffers in silence.