It is disinformation warfare. We can argue this and that should be done, but it is unlikely it would make much difference. Many people who voted for trump had believed Harris positions that were opposite from reality. People get their news from social media which is easily manipulated.
Ironically social media are no longer social, they are full of bots and AI generated content that is used to manipulate our views.
It's not just wearables, I was using oximeter and heat rate monitor and when asking, doctor just dismissed it. Apparently consumer grade devices don't really have any certifications that they have to share to, so to my doctor or was just a nose that can't be used for diagnostics.
So given that those devices don't have proper verification to be used for diagnostics, why are they being pushed on us? If doctors are not interested, why social media comments are?
I think under the excuse that it can detect something early the reason is more sinister. Imagine what additional extra information they can get off they see for example that your heart rate increases when viewing a polarizing subject, that's quite additional wealth of information about of you that can easily help find what issues you care about and then use that in the future.