Cycle Sync
Work with your body, not against it.
Cycle sync guide
your cycle is not a schedule to obey, it is a rhythm to work with. Work, movement, nutrition, sleep, energy and herbal support, phase by phase. Tap any section to expand. Treat this as a flexible framework.
Educational information only. Not medical advice. Discuss supplements and any new symptoms with a qualified clinician, especially if you take medications or have a chronic condition.
Your lifestyle
Tell Keza what your week actually looks like
Tap anything that fits. Keza will weave it into your phase guidance below.
Menstrual phase
Days 1 to 5
Bleeding begins. Estrogen and progesterone are at their lowest.
Hormones: Estrogen low. Progesterone low. Iron and ferritin can drop.
Follicular phase
Days 6 to 13
Estrogen rises as a follicle matures. Energy, mood, and cognition climb.
Hormones: Estrogen rising. FSH active. Progesterone still low.
Ovulatory phase
Days 14 to 16 (varies)
LH surge releases the egg. Estrogen peaks, testosterone briefly rises.
Hormones: Estrogen peak, LH surge, small testosterone bump.
Luteal phase
Days 17 to 28
Progesterone dominates. If no pregnancy, both hormones fall before bleeding.
Hormones: Progesterone rising then falling. Estrogen secondary rise then fall.
A note for perimenopause
In perimenopause, cycles become irregular and ovulation may not happen every month. Use the phase you are likely in based on bleeding and symptoms, and lean on the luteal-phase nutrition and sleep guidance during low-energy weeks. Track patterns in Keza and bring them to your clinician.