NEWS I HOPE YOU CAN’T USE: Apple Watch Users Can Now Monitor How Bodies React To Coronavirus.

When we’re sick, cells in our immune system release small proteins called histamines which cause inflammation and expansion of blood cells. This process sends signals to our brain to increase heart rate and the amount of blood sent to such inflamed regions.

This elevated heart rate is most notable during sleep. Hence, Sleeping BPM will help give insight on how the body reacts to a sickness. Obviously, if users want to make use of this feature, they’ll need to wear the Apple Watch while sleeping at night – a time that’s usually used to replenish the battery of the watch. But given how most of us have quarantined ourselves, it shouldn’t be that big of a problem.

Not a replacement for medical care, but if people choose to share their data it will be useful.