If you suffer a serious head injury in a car accident, a fall from a ladder or some similar event, it can have a drastic impact on the rest of your life. Brain injuries are different for everyone, but one side effect that can change everything is when it alters your memories.
Workplace discrimination takes many forms. Maybe you didn't get hired because of your gender, unable to break into a workplace dominated by the opposite sex. Maybe you got to an interview, but you knew your race meant you never really had a shot. Perhaps you got passed over for promotions that you deserved. Maybe you faced harassment from co-workers and supervisors over things like age or sexual orientation.
Finding a job can be difficult, even under the best of circumstances. Often, many people compete for a single position. Finding a job when you are 40 or older, though, can prove to be even more of a challenge; this is especially true when employers have a bias against you because of your age.