Python Script to Parse Apple Watch and Apple Health data from the export.xml
See link for getting the data off your iPhone:
(pre IOS 10) http://www.idownloadblog.com/2015/06/10/how-to-export-import-health-data/ (IOS 10) https://www.igeeksblog.com/how-to-export-import-health-data-in-ios-10/