Why are all the continuous health measurement switches turned off on the Xiaomi Watch 5?

If all continuous health measurement switches are turned off on the Xiaomi Watch 5, please check whether the watch is in a low battery state. In this case, continuous monitoring of blood oxygen, heart rate, and stress is disabled to extend battery life. After the watch powers off and is recharged and turned on, these monitoring features should be manually re-enabled.
To turn on the continuous health measurement switches, please refer to the following methods:
1. Continuous monitoring of blood oxygen: SpO2 App >> [Settings] >> [All-day tracking].
2. Continuous monitoring of heart rate: Heart rate App >> [Settings] >> [Continuous monitoring].
3. Continuous monitoring of stress: Stress App >> [Settings] >> [All-day monitoring].