In Health on iPhone, view your health and fitness information in one place.
Use Apple Pay in apps and on the web on iPhone - Apple Support (CA)
Official Apple Support
Track your menstrual cycle in Health on iPod touch - Apple Support
Share features with your family - Apple Support (CA)
Find your lost Apple device or AirTag with Find My – Apple Support
Get to know the Health app on your iPhone - Apple Support
Healthcare - Health Records - Apple
Monitor your heart rate with Apple Watch - Apple Support (CA)
Zoom in on the iPhone screen - Apple Support
The complete guide to Apple's Health app - CNET