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hormonal health

Perimenopause vs PMS Symptoms: Key Differences

Mood swings, disrupted sleep, and irregular periods can signal either PMS or the start of perimenopause — and the distinction matters. Here's how to read your hormonal signals by pattern, not just symptom.

PMS vs PMDD: How to Tell the Difference

PMS and PMDD share timing but differ sharply in severity and clinical definition. This explainer breaks down DSM-5 criteria, the luteal-phase serotonin connection, and a two-cycle tracking method to help you know when to seek care.
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