Answer:
Losing one's car keys is an example of a personal stressor. Personal stressors are events or situations that are unique to an individual and can cause stress. They can include things like losing a job, going through a breakup, or experiencing financial difficulties. Background stressors, on the other hand, are ongoing stressors that are a part of everyday life, such as traffic, noise, or pollution. Post-traumatic stress disorder (PTSD) is a mental health condition that can develop after a person experiences or witnesses a traumatic event, such as a natural disaster, serious accident, or violent assault.