Standard fitness tracking algorithms assume a 24-hour male hormonal baseline, heavily penalizing women for natural physiological changes during their menstrual cycle. Users are frustrated when their devices tell them they are 'unproductive' during their luteal phase.
Women continually post in forums and app reviews about the frustration of fitness trackers (like Garmin or Apple Watch) telling them to push harder or reporting their fitness is declining, when in reality they are in the luteal or menstrual phase of their cycle where heart rate variability (HRV) naturally drops and core temp rises. There is a massive need for a tracker/software layer that dynamically adjusts strain goals, recovery expectations, and nutritional needs based on the 28-day female hormone cycle.
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