Life Stages

First period to menopause, with the biology at each turn.

What changes when — puberty, pregnancy, postpartum, perimenopause — and why symptoms shift with each stage.

starter · 6 min · for parent, menstruator

First period: the biology, not the folklore

What menarche actually is, why it happens when it does, and what a first year of periods really looks like.

core · 8 min · for menstruator, partner, clinician

The transition can begin in your late 30s. Here's what changes, what it feels like, and why 'you're too young' is the wrong answer.