Your cycle is not run by one organ. It is a conversation between your brain, your glands and the tissues that listen to them — on two rhythms at once: the daily one and the monthly one. Turn the body, peel it back, and tap anything.
The 3D view could not start on this device. Everything it contains is in the structure list and the text version below.
Drag to turn · pinch or scroll to zoom · tap a structure Gland sizes are exaggerated so you can see them
Life stage
Time of day · sleep 23:00–07:00
CortisolMelatonin
Cycle day · illustrative 28-day average
OestradiolProgesteroneLH
Text version · everything in the model, without the 3D