No, only real social ties, that are there for you practically, and can hug you or help you move.

Yes, each post negates one Sunday mass.

To the downvoters: have you run a clinical trial?

The journal mentioned in the article (Brain, Behavior and Immunity - Health) has a few submissions related to this topic, like the one that examines CRP levels and social media use: https://pubmed.ncbi.nlm.nih.gov/37224891/