How to overlay multiple graphs from Apple Health data With Apple Health in iOS 9, how can I see the interaction between multiple data categories? For example, if I enter data for menstruation and sexual activity, it would be nice to see a graph with both of those overlaid on one another.
The feature you're describing doesn't exist in the Health app. However, it's possible there's some App Store app that reads such data from HealthKit and can display a combined chart.