Use a health service that gets notified of health updates by the system
instead of querying the system constantly. This is useful because if a
user hasn't moved for awhile, we can cache the current steps, heart
rate, etc. instead of constantly asking the system.
Use a health service that gets notified of health updates by the system instead of querying the system constantly. This is useful because if a user hasn't moved for awhile, we can cache the current steps, heart rate, etc. instead of constantly asking the system.