Anxiety is a common human emotion characterized by feelings of dread, tension, or worry. Working memory is an executive functioning skill that allows you to hold new information in your brain while doing something else.
Depression is clinically referred to as major depressive disorder in the DSM-5. It is both a common and serious mood disorder whose symptoms could show up in different ways depending on the person.
Post-traumatic stress disorder, or PTSD, develops in some individuals who have experienced extreme or prolonged exposure to dangerous, stressful, or scary events.