How can I turn on the apnea notification?

There's no option to help me turn it on in my iPhone 16 Pro Max MYW43LL/A (iOS 18.1 developer beta) and Apple Watch Series 10 MWX13LW/A (watchOS 11 Developer Beta).

Same here. Can’t even activate it in health checklist nor even see an option. iOS 18.1 beta on iPhone 16 pro max and Apple Watch 10 on 11.1 os

How can I turn on the apnea notification?
 
 
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