epidemiology is the study of the frquency and distribution of a disease in a defined population
When we are little we see the way our parents or elders act and that tells our brain that is the correct way to act. As we grow up the things they tell us we will become is what we think will happen and so we do that in fear that we will disappoint them.
Answer:
Re-entry anxiety refers to the anxiety one might face while easing back to old routines. It's difficult for people who have trouble with routine change and can make it feel impossible to go back to old ways even though it is familiar. This plays a big role in the pandemic as many places are starting to re-open, restrictions are being lifted and people are getting vaccinated.