Habits
Cycle Length Variability
Cycle length variability is normal fluctuation in days between periods—travel, stress, illness, and training load can shift timing. A few days' swing differs from months of skipped cycles.
Cycle length variability is normal fluctuation in days between periods—travel, stress, illness, and training load can shift timing. A few days' swing differs from months of skipped cycles.
Tracking several months reveals your personal range better than one textbook 28-day model.
Related terms
Put Cycle Length Variability into practice
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