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The English word love can refer to a variety of different feelings, states, and attitudes, ranging from pleasure ("I loved that meal") to interpersonal attraction ("I love my partner"). It can refer to an emotion of a strong affection and personal attachment . [ 1 ] It can also be a virtue representing human kindness , compassion , and affection—"the unselfish loyal and benevolent concern for the good of another". [ 2 ] And it may describe compassionate and affectionate actions towards other humans, one's self or animals. [ 3 ]
If you've ever been in love, you've probably at least considered classifying the feeling as an addiction . And guess what: You were right. As it turns out, scientists are discovering that the same chemical process that takes place with addiction takes place when we fall in love.
The Romantic Syndrome: A Neuropsychological Perspective. Isabel Jaén 1.
Norepinephrine ( INN ) (abbreviated norepi or NE ), or noradrenaline ( BAN ) (abbreviated NA , NAd , or norad ), is a catecholamine with multiple roles including as a hormone and a neurotransmitter . [ 3 ] Areas of the body that produce or are affected by norepinephrine are described as noradrenergic . The terms noradrenaline (from the Latin) and norepinephrine (derived from Greek) are interchangeable, with noradrenaline being the common name in most parts of the world. However, to avoid confusion and achieve consistency, medical authorities [ 4 ] have promoted norepinephrine as the favoured nomenclature, and this is the term used throughout this article. One of the most important functions of norepinephrine is its role as the neurotransmitter released from the sympathetic neurons affecting the heart.
Dopamine (abbreviated as DA [ 1 ] ), a simple organic chemical in the catecholamine family, is a monoamine neurotransmitter and hormone , which has a number of important physiological roles in the bodies of animals. In addition to being a catecholamine and a monoamine, dopamine may be classified as a substituted phenethylamine . Its name derives from its chemical structure, which consists of an amine group (NH 2 ) linked to a catechol structure, called dihydroxyphenethylamine, the decarboxylated form of dihydroxyphenylalanine (acronym DOPA). In the brain , dopamine functions as a neurotransmitter —a chemical released by nerve cells to send signals to other nerve cells.
Serotonin ( pron.: / ˌ s ɛr ə ˈ t oʊ n ɨ n / ) or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter . Biochemically derived from tryptophan , serotonin is primarily found in the gastrointestinal (GI) tract, platelets , and in the central nervous system (CNS) of animals including humans. It is popularly thought to be a contributor to feelings of well-being and happiness . [ 5 ]