Nostalgia is a longing and affection for the past. This can encompass positive emotions such as happiness as well as other emotions and recollections, such as tenderness and longing. We have the feeling of nostalgia when we yearn for simpler times, for example, when we were children.| Psychology Today
The glass is half-empty, and storm clouds loom overhead, never with a silver lining. Pessimists get a lot of flak for their inclination toward negativity and their tendency to expect the worst in most situations. Besides taking a toll on their mental health, their physical health may take a beating, too. Pessimism, while it may be useful in isolation or in moderation, is associated with anxiety, depression, sleep disorders, hostility, high blood pressure, and heart disease.| Psychology Today
All humans are born with biological characteristics of sex, either male, female, or intersex. Gender, however, is a social construct and generally based on the norms, behaviors, and societal roles expected of individuals based primarily on their sex. Gender identity describes a person’s self-perceived gender, which could be male, female, or otherwise.| Psychology Today
Anxiety is both a mental and physical state of negative expectation. Mentally it is characterized by increased arousal and apprehension tortured into distressing worry, and physically by unpleasant activation of multiple body systems—all to facilitate response to an unknown danger, whether real or imagined.| Psychology Today
Identity encompasses the memories, experiences, relationships, and values that create one’s sense of self. This amalgamation creates a steady sense of who one is over time, even as new facets are developed and incorporated into one's identity.| Psychology Today
Psychotherapy, also called talk therapy or usually just "therapy," is a form of treatment aimed at relieving emotional distress and mental health problems. Provided by any of a variety of trained professionals—psychiatrists, psychologists, social workers, or licensed counselors—it involves examining and gaining insight into life choices and difficulties faced by individuals, couples, or families. Therapy sessions refer to structured meetings between a licensed provider and a client with a...| Psychology Today
Cognition refers, quite simply, to thinking. There are the obvious applications of conscious reasoning—doing taxes, playing chess, deconstructing Macbeth—but thought takes many subtler forms, such as interpreting sensory input, guiding physical actions, and empathizing with others.| Psychology Today