Girl Harmony Library
Learn your body, one phase at a time.
Real, body-literate articles, recipes, workouts, and cycle guides from the Girl Harmony app. Written warm, grounded in science, free to read.
Articles
Body literacyWhat your blood is telling youColor, clots, length, read your period like a body letter.
Cycle syncingEat with your phases (without becoming weird about it)A non-orthorexic guide to luteal-phase comfort food.
Body literacyHow to spot ovulation without a stickCervical fluid, basal body temp, libido, the three-legged stool of FAM.
HormonesPMS vs PMDD: when it's more than moodWhere to draw the line and when to call a doctor (we have a checklist).
MovementCycle-synced workouts you'll actually doYes, even on day 1. Yes, even when you don't want to.
MindWhy your brain feels like soup in the luteal phaseProgesterone, GABA, and the science of pre-period brain fog.
Self-careThe 9-minute reset for a luteal SundayA no-effort, no-fluff routine.
Birth controlWhich contraceptive doesn't mess with your moodAn honest comparison nobody asked us to make.
Endo & PCOSIf your cramps make you cancel plans, read thisWhen pain becomes a red flag, not a rite of passage.
PerimenopauseWait, you can be perimenopausal at 38?Yes. Here's what's actually happening.
Your four phases
Cycle-synced recipes
Cozy iron-up beef stewMenstrual phase · 35 min · 480 kcal
Magnesium hot chocolateMenstrual phase · 5 min · 180 kcal
Crunchy fermented bowlFollicular phase · 15 min · 410 kcalGreen frittata muffinsFollicular phase · 25 min · 220 kcal
Raw rainbow salad with misoOvulation phase · 12 min · 380 kcal
Ginger lime salmonOvulation phase · 20 min · 460 kcal
Sweet potato and tahini bowlLuteal phase · 25 min · 540 kcal
Slow oats with B6 bananaLuteal phase · 10 min · 350 kcal Cycle-synced workouts
Yin yoga for crampsMenstrual phase · 20 min · Easy
Slow walking meditationMenstrual phase · 30 min · Easy
Zone-2 jog and drillsFollicular phase · 35 min · Medium
Sculpt and cardio reformerFollicular phase · 45 min · Medium
Strength PR dayOvulation phase · 50 min · Hard
HIIT shadow boxOvulation phase · 25 min · HardPilates and mobilityLuteal phase · 30 min · Medium
Long zone-2 walkLuteal phase · 60 min · Easy
Courses
Cycle Literacy 1017-day intro to your phases · Dr. Jen Lincoln, OBGYNHormone Health 3030-day deep dive on estrogen, progesterone, cortisol · Dr. Sarah Hill, PhDPMDD 30-Day PlanTracked with the DRSP, doctor-co-designed · Dr. Tory Eisenlohr-Moul, PMDD researcherPerimenopause FoundationsWhat is changing, what to track, when to ask about HRT · Dr. Mary Claire Haver, OBGYNPCOS RoadmapFor your subtype and insulin pattern · Dr. Felice Gersh, MDBody Literacy for TeensCycle basics for ages 13 to 17 · Mama Doctor Jones, OBGYN Teen Hub
Your first period, what to expectWhen it starts, what's normal, how to talk to a parent.
Tampons: a brief, weird historyFrom ancient Egypt to modern cups, how period products got here.
Your anatomy, plainly explainedCervix, uterus, ovaries, vulva. No mystery.Pads vs. tampons vs. cups vs. underwearHow each works, when to use what, real talk on TSS.
Cramps: why and what helpsWhat causes them and what actually works (heat, magnesium, ibuprofen).
How to talk to your parentScripts that aren't awkward. Both parents, any parent, no parent.
100 Questions
Why does my period blood vary in color?Is it normal to clot during my period?Why does my discharge smell different mid-cycle?Can my period sync with friends?Is it safe to skip my period on the pill?Why do I cry over commercials in the luteal phase?Why is my libido higher around ovulation?Why am I bloated before my period?What does spotting between periods mean?How much blood do I lose in a period?
For your partner
How to support someone with PMDDWithout taking it personally. Specific phrases to use when the hard days hit.What's actually happening in lutealHormones, not personality. Why patience is the move in the second half of her cycle.What to say (and not say) on day 1Surprisingly easy. Real scripts for the first day of her period.
Cycle-aware sex: what changes phase to phaseFor couples who want to be more in sync across the whole month.Perimenopause: the basics for partnersWhat HRT is, why she's tired, and what actually helps during the transition.How to bring up cycle-related issues without making it about youCommunication scripts for talking about her cycle with care, not blame.
Glossary
estrogenThe dominant hormone in the first half of your cycle. It builds the uterine lining.progesteroneThe dominant hormone in the second half. It maintains the lining and can drive PMS.DRSPDaily Record of Severity of Problems, the gold-standard tool for assessing PMDD.PMDDPremenstrual Dysphoric Disorder, a severe form of PMS affecting an estimated 5 to 8 percent of women.PCOSPolycystic ovary syndrome, a hormonal condition causing irregular cycles in roughly 10 percent of women.BBTBasal body temperature, your at-rest temperature, which rises about half a degree Fahrenheit after ovulation.FAMFertility Awareness Method, tracking cycles, temperature, and cervical mucus to understand fertility.LHLuteinizing hormone, which surges 24 to 36 hours before ovulation and is detected by ovulation strips.FSHFollicle-stimulating hormone, which drives follicle growth in the first half of your cycle.perimenopauseThe 4 to 10 year transition before menopause, when cycles become irregular and symptoms shift.endometriosisA condition where tissue similar to the uterine lining grows elsewhere, which can cause severe period pain.HRTHormone Replacement Therapy, used in perimenopause and menopause to manage symptoms.NiddahA Jewish religious practice around menstrual purity, including seven clean days and mikvah.TSSToxic Shock Syndrome, a rare but serious infection linked to extended tampon wear.Get the full picture in the Girl Harmony app
Track every phase, talk to Bestie (your AI cycle coach), and never feel surprised by your own body again.
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