You asked. We answered.

PMS (premenstrual syndrome) is a group of physical and emotional symptoms that show up in the 1–2 weeks before your period and fade within a few days after it starts. See our Learn page for pictures.

No. PMS is real. It's linked to the rise and fall of estrogen and progesterone after ovulation, and to how your brain chemistry, especially serotonin, reacts to those changes.

Very common. About 3 in 4 women who get periods have some PMS symptoms at some point. About 1 in 20 have a severe premenstrual disorder like PMDD.

Yes. Many women notice PMS getting stronger in their late 30s and 40s, especially during perimenopause, when hormones swing more. It ends after menopause, when periods stop.

Yes. PMS can start any time after periods begin. Tracking symptoms and talking to a parent, school nurse or doctor can help a lot.

The best-supported steps are regular exercise, calcium (from food or supplements), less salt, caffeine and alcohol, good sleep, and stress relief. For cramps, heat and over-the-counter pain relievers like ibuprofen work well. See our product guide.

Some have decent evidence. Calcium has the strongest, and magnesium, vitamin B6 and chasteberry (vitex) have some. Others have very little. Supplements can interact with medicines, so check with a doctor or pharmacist first.

Cravings are a classic PMS symptom, likely linked to hormone and serotonin changes. Dark chocolate does contain some magnesium. A small square is a perfectly fine treat.

For some women, yes. Certain birth control pills that steady hormone levels can reduce PMS and PMDD symptoms. For others they make mood worse. It's a personal decision to make with a doctor.

Yes, and it often helps. Gentle movement like walking or yoga can ease cramps and lift your mood. Listen to your body and go easier on tough days.

PMDD is the severe form. Mood symptoms like deep sadness, rage, hopelessness or anxiety are strong enough to disrupt your life, and they lift soon after your period starts. Read PMS or PMDD? and try the free self-screen at IAPMD.

If symptoms affect your work, school or relationships, if lifestyle changes haven't helped after 2–3 cycles, or if you have very painful, heavy or irregular periods. Bring 2–3 months of symptom tracking with you.

Please reach out now. In the U.S., call or text 988 any time. This can be a symptom of PMDD. It's treatable, and you deserve support. IAPMD also has free peer support groups.

No. WePMS is not currently working with any doctors or OB-GYNs. We gather information from trusted public sources and present it clearly. We'd love for doctors to join us. Here's how.

Never. WePMS is run by the Benny Labs Foundation, a nonprofit. Everything is free, including the weekly newsletter. We don't run ads or make a profit.