Occurrences consist of different
experiences, situations, thoughts, and emotions. Occurrences can be positive or
negative. Occurrences can be realistic or a product of your imagination.
Occurrences can act as both a stressor as well as a trigger (a switch, a pusher ) the latter of which refers to the creation of a reaction or process,
making it the most suitable expression to use.
Stress is not caused by things and situations themselves, but rather, your interpretation and reaction to them.