If I was Paris Gellar and leading this group project I would have everyone take my supplement protocol (funded for anyone who needs it–a public health equivalent to passing out condoms).
We are using our imaginations to come up with worst case scenarios when we worry. Simultaneously we are flooding our body with chemicals that harm our immune system and cause disease.
When I find myself worrying I like to antidote it by coming up with five good things that are possible. Training the brain against those tendencies to catastrophize.