Emotion

Acedia (/əˈsiːdiə/; also accidie or accedie /ˈæksᵻdi/, from Latin acedĭa, and this from Greek ἀκηδία, "negligence") is a state of listlessness or torpor, of not caring or not being concerned with one's position or condition in the world.

The fight-or-flight response (also called hyperarousal, or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival.

Emotivism is a meta-ethical view that claims that ethical sentences do not express propositions but emotional attitudes.

Certainty is perfect knowledge that has total security from error, or the mental state of being without doubt.

Emotional intelligence (EI) or emotional quotient (EQ) is the capability of individuals to recognize their own, and other people's emotions, to discriminate between different feelings and label them appropriately, to use emotional information to guide thinking and behavior, and to manage and/or adjust emotions to adapt environments or achieve one's goal(s).

The word is also often used metaphorically.

Emotional Freedom Techniques (EFT) is a form of counseling intervention that draws on various theories of alternative medicine including acupuncture, neuro-linguistic programming, energy medicine, and Thought Field Therapy (TFT).

Rational emotive behavior therapy (REBT), previously called rational therapy and rational emotive therapy, is a comprehensive, active-directive, philosophically and empirically based psychotherapy which focuses on resolving emotional and behavioral problems and disturbances and enabling people to lead happier and more fulfilling lives.

Crying is the shedding of tears in response to an emotional state.

Hope is an optimistic attitude of mind that is based on an expectation of positive outcomes related to events and circumstances in one's life or the world at large.

Sadness is an emotional pain associated with, or characterized by, feelings of disadvantage, loss, despair, grief, helplessness, disappointment and sorrow.

Schadenfreude (/ˈʃɑːdənfrɔɪdᵊ/; German: [ˈʃaːdn̩ˌfʁɔʏ̯də] ; lit. 'harm-joy') is pleasure derived from the misfortune of others.

In psychology, frustration is a common emotional response to opposition.

Allodynia (Ancient Greek άλλος állos "other" and οδύνη odúnē "pain") refers to central pain sensitization (increased response of neurons) following painful, often repetitive, stimulation.

Emotional detachment, in psychology, can mean two different things.

In psychology, affect display or affective display is a subject's externally displayed affect.

Sensibility refers to an acute perception of or responsiveness toward something, such as the emotions of another.

Emotional labor is the process of managing feelings and expressions to fulfill the emotional requirements of a job.

The study of the evolution of emotions dates back to the 19th century.

Neglect is a form of abuse where the perpetrator is responsible for caring for someone who is unable to care for himself or herself but fails to do so.

In the treatise Passions of the Soul (French: Les passions de l'âme), the last of Descartes' published work, completed in 1649 and dedicated to Princess Elisabeth of Bohemia, the author contributes to a long tradition of theorizing "the passions".

A hot-cold empathy gap is a cognitive bias in which people underestimate the influences of on their own attitudes, preferences, and behaviors.

Bullying is abusive social interaction between peers which can include aggression, harassment, and violence.