Anxiety

thumb|Anxiety underlies The Scream (1893) by [[Edvard Munch, which grapples with a complex human experience.]]

Adrenaline, also known as epinephrine and alternatively spelled adrenalin, is a hormone and medication which is involved in regulating visceral functions (e.g., respiration). It appears as a white microcrystalline granule. Adrenaline is normally produced by the adrenal glands and by a small number of neurons in the medulla oblongata. It plays an essential role in the fight-or-flight response by increasing blood flow to muscles, heart output by acting on the SA node, pupil dilation response, and blood sugar level. It does this by binding to alpha and beta receptors. It is found in many animals,

Procrastination is the act of unnecessarily delaying or postponing something despite knowing that there could be negative consequences for doing so. It is a common human experience involving delays in everyday chores or even putting off tasks such as attending an appointment, submitting a job report or academic assignment, or broaching a stressful issue with a partner. It is often perceived as a negative trait due to its hindering effect on one's productivity, associated with depression, low self-esteem, guilt, and feelings of inadequacy. However, it can also be considered a wise response to c

Cortisol is a steroid hormone in the glucocorticoid class of hormones and a stress hormone. When used as medication, it is known as hydrocortisone.

class=skin-invert-image|thumb|Chemical structure of met-enkephalin

period of intense fear or apprehension of sudden onset

thumb|A depiction of Rama in the Ramayana. Worried about his wife Sita, he is consoled by his brother Lakshmana.

In psychology, confusion is the quality or emotional state of being bewildered or unclear. The term acute mental confusion is often used interchangeably with delirium in the International Statistical Classification of Diseases and Related Health Problems and the Medical Subject Headings publications to describe the pathology. These refer to the loss of orientation, or the ability to place oneself correctly in the world by time, location and personal identity. Mental confusion is sometimes accompanied by disordered consciousness (the loss of linear thinking) and memory loss (the inability to co

anxiety disorder that is characterized by long-lasting anxiety that is not focused on any one object or situation

thumb|262px|The Scream (1893) by [[Edvard Munch represents his experience of "an infinite scream passing through nature."]]

Neuroticism or negativity is a personality trait associated with negative emotions. It is one of the Big Five traits. People high in neuroticism experience negative emotions like fear, anger, shame, envy, or depression more often and more intensely than those who score low on neuroticism. Highly neurotic people have more trouble coping with stressful events, are more likely to insult or lash out at others, and are more likely to interpret ordinary situations (like minor frustrations) as hopelessly difficult. Neuroticism is closely-related to mood disorders such as anxiety and depression.

Self-medication, sometimes called do-it-yourself (DIY) medicine, is a human behavior in which an individual uses a substance or any exogenous influence to self-administer treatment for physical or psychological conditions, for example headaches or fatigue.

set of physiological feedback interactions

thumb|alt=A person holds their hands together with a string-like toy between their fingers|An autistic adult stimming with a stim toy in their hands Self-stimulatory behavior (also called stimming, stims, self-stimulation, stereotypy, and stereotypic movement disorder) is the repetition of physical movements, sounds, words, moving objects, or other behaviors. Stimming is a type of restricted and repetitive behavior (RRB). They can be both conscious and subconscious. Such behaviors are found to some degree in all people, but are especially intense and frequent in those with developmental disabi

exaggerated or irrational thought pattern involved in the onset and perpetuation of psychopathological states

persistent thinking that causes worry and distress

A stressor is a chemical or biological agent, environmental condition, external stimulus or an event seen as causing stress to an organism. Psychologically speaking, a stressor can be events or environments that individuals might consider demanding, challenging, and/or threatening individual safety.

unwelcome involuntary thought, image, or unpleasant idea that may become an obsession

book by Søren Kierkegaard

Hematidrosis, also called hematohidrosis, haematidrosis, hemidrosis and blood sweat, is a very rare condition in which a human sweats blood. The term is from Greek / (αἷμα/αἵματος), meaning blood, and (ἱδρώς), meaning sweat.

outdated diagnosis for patients with multiple symptoms of a neurological condition

painting by Edvard Munch

traditional Guatemalan doll

when people provide knowledge, experience, emotional, social or practical help to each other

the effort to avoid dealing with a stressor

Allostasis (/ˌɑːloʊˈsteɪsɪs/) is a physiological mechanism of regulation in which an organism anticipates and adjusts its energy use according to environmental demands. First proposed by Peter Sterling and Joseph Eyer in 1988, the concept of allostasis shifts the focus away from the body maintaining a rigid internal set-point, as in homeostasis, to the brain's ability and role to interpret environmental stress and coordinate changes in the body using neurotransmitters, hormones, and other signaling mechanisms.

thumb|Flogsta as seen from the west thumb|Night shot from the roof of 8, Sernanders väg

response to emotional pressure suffered for a prolonged period of time in which an individual perceives they have little or no control

English expression

feeling of unease and insecurity experienced in learning or using a foreign language

acute stress response in which the individual becomes immobile or paralyzed, often as a way to avoid detection or to assess the threat

misinterpretation of stress as a suspitious attitude

attempts to avoid internal experiences