Some amount of stress is as necessary condition for growth, but that growth requires a period of rest and recovery.
The internet has been fantastic for connecting us across the globe, but it also is a firehose of unactionable "danger" information. If you read the news in the morning, its all wars and rumors of wars.
A hundred years ago if we were neighbors in a small town most of our troubles would have been local troubles, and common to us all - with occasionally some larger problems arising.
It's likely that our biology and neuro-psychology is not well served by the systems that exist.