Is It My Mood or My Cycle? Mental Health & the Menstrual Cycle
If your mood seems to swing with your cycle, you're not imagining it. Psychiatrist Dr. Sara Cohen Fournier explains the real link between hormones and mental health — and why your menstrual cycle is a vital sign worth listening to.
Your cycle is a vital sign
We track temperature, blood pressure, heart rate — but not the menstrual cycle. Dr. Sara Cohen Fournier calls the cycle a fifth vital sign: a monthly read on what's happening in your body and mind. The problem isn't that the signal is missing. It's that no one taught us to listen to it.
Is it PMS, or something more?
Many women ask Dr. Cohen Fournier the same question: is this normal PMS, or is it PMDD — something more? Her answer is that you can't know from a single hard month. You track it across a few cycles. That tracking turns a vague, frightening feeling into a visible pattern — and a pattern is something you can actually work with.
Why mood drops before your period
The hormonal drop in the days before your bleed is real, and it affects mental health — shifts in mood, anxiety, sleep. Dr. Cohen Fournier's point isn't to fear the drop, but to expect it: when you know the low is coming, you can prepare for it instead of being blindsided by it every month.
Protecting your mental health through perimenopause
The years you're still cycling are practice for what comes later. Dr. Cohen Fournier describes perimenopause as a major mental health transition — the hormones that protected your mood begin to drop. Learning to read your signals now, while the water is calmer, is how you arrive at that transition prepared rather than overwhelmed
About Dr. Sara Cohen Fournier
Dr. Sara Cohen Fournier is a psychiatrist working in clinical practice and in hospital settings. In this conversation she brings a psychiatrist's perspective to the menstrual cycle, hormones, and emotional health — and to the idea that each of us can be an active, informed participant in our own care.
Click to read the full transcript
Related episodes from Get Obsessed:
Iron, Ferritin & Methylation: Why Your Blood Test Says "Normal" But You're Exhausted — with Dr. Michal Waldfogel
My Period Stopped — and I'm Not Pregnant: Understanding Hypothalamic Amenorrhea — with Elena Gelibter
Get Obsessed is a free podcast. The Method is the deeper work. You deserve more than symptom management.
This episode discusses mental health, including depression and PMDD. If you're struggling, you deserve support — please reach out to a healthcare provider or someone you trust.
