Libido in its common usage means sexual desire; however, more technical definitions, such as those found in the work of Carl Jung, are more general, referring to libido as the free creative—or psychic—energy an individual has to put toward personal development or individuation.
History of the concept
Sigmund Freud popularized the term and defined libido as the instinct energy or force, contained in what Freud called the id, the largely unconscious structure of the psyche. Freud pointed out that these libidinal drives can conflict with the conventions of civilized behavior, represented in the psyche by the superego. It is this need to conform to society and control the libido that leads to tension and disturbance in the individual, prompting the use of ego defenses to dissipate the psychic energy of these unmet and mostly unconscious needs into other forms. Excessive use of ego defenses results in neurosis. A primary goal of psychoanalysis is to bring the drives of the id into consciousness, allowing them to be met directly and thus reducing the patient's reliance on ego defenses.
According to Swiss psychiatrist Carl Gustav Jung, the libido is identified as psychic energy. Duality (opposition) that creates the energy (or libido) of the psyche, which Jung asserts expresses itself only through symbols: "It is the energy that manifests itself in the life process and is perceived subjectively as striving and desire." (Ellenberger, 697)
Defined more narrowly, libido also refers to an individual's urge to engage in sexual activity. In this sense, the antonym of libido is destrudo.
Libido impairment
Sexual desire can be impaired or reduced. It also may be weak or not be present at all, such as in occurrences of asexuality. Factors of reduced libido can be both psychological and physical. Absence of libido may or may not correlate with infertility or impotence.
Psychological factors
Reduction in libido can occur from psychological causes such as loss of privacy and/or intimacy, stress, distraction or depression. It may also derive from the presence of environmental stressors such as prolonged exposure to elevated sound levels or bright light. Other causes include:
- depression
- stress or fatigue
- childhood sexual abuse, assault, trauma, or neglect
- body image issues
- sexual performance anxiety
Physical factors
Physical factors that can affect libido include: endocrine issues such as hypothyroidism, levels of available testosterone in the bloodstream of both women and men, the effect of certain prescription medications (for example proscar (a.k.a. finasteride) or minoxidil), various lifestyle factors and the attractiveness and biological fitness of one's partner. Inborn lack of sexual desire, often observed in asexual people, can also be considered a physical factor.
Lifestyle
Being very underweight, severely obese, or malnourished can cause a low libido due to disruptions in normal hormonal levels. There is also evidence to support that specific foods have an effect on libido.
Medications
Reduced libido is also often iatrogenic and can be caused by many medications, such as hormonal contraception, SSRIs and other antidepressants, antipsychotics, opioids and beta blockers. In some cases iatrogenic impotence or other sexual dysfunction can be permanent, as in PSSD.
Testosterone is one of the hormones controlling libido in human beings. Emerging research is showing that hormonal contraception methods like "the pill" (which rely on estrogen and progesterone together) are causing low libido in females by elevating levels of Sex hormone binding globulin (SHBG). SHBG binds to sex hormones, including testosterone, rendering them unavailable. Research is showing that even after ending a hormonal contraceptive method, SHBG levels remain elevated and no reliable data exists to predict when this phenomenon will diminish. Some question whether "the pill" and other hormonal methods (Depo-Provera, Norplant, etc) have permanently altered gene expression by epigenetic mechanisms.
Left untreated, with low testosterone levels will experience loss of libido which in turn can often cause relationship stress, and loss of bone and muscle mass throughout their lives. (Low testosterone may also be responsible for certain kinds of depression and low energy states.)
Conversely, increased androgen steroids (e.g. testosterone) generally have a positive correlation with libido in both sexes.
Menstrual cycle
Women's libido is correlated to their menstrual cycle. Many women experience heightened sexual desire in the several days immediately before ovulation.
Other causes of low libido include not getting enough sleep, unresolved conflicts within the relationship, and suboptimal amounts of testosterone in the body
See also
- Aphrodisiac
- Cathexis
- Coitus reservatus
- Conatus
- Death drive
- Destrudo
- Eros
- Id, ego, and super-ego
- Lust
- Mortido
- Perimenopause
- Self preservation
- Sexual attraction
References
- ^ Reber, Arthur S.; Reber, Emily S. (2001). Dictionary of Psychology . New York: Penguin Reference. ISBN 0-140-51451-1.
- ^ (Yalom, I.D., Love's Executioner and Other Tales of Psychotherapy. New York: Basic Books, 1989.)
- ^ Psychology Today - The orgasm Wars
- ^ "Obesity increases risk of erectile dysfunction"
- ^ Forbes.com
- ^ Nerve.com
- ^ Warnock JK, Clayton A, Croft H, Segraves R, Biggs FC. Comparison of androgens in women with hypoactive sexual desire disorder: those on combined oral contraceptives (COCs) vs. those not on COCs. . J Sex Med 2006;3:878-882. PMID 16942531.
- ^ Panzer C, Wise S, Fantini G, Kang D, Munarriz R, Guay A, Goldstein I. Impact of oral contraceptives on sex hormone-binding globulin and androgen levels: a retrospective study in women with sexual dysfunction. . J Sex Med 2006;3:104-113. PMID 16409223.
- ^ Susan B. Bullivant, Sarah A. Sellergren, Kathleen Stern, et al. (February 2004). "Women's sexual experience during the menstrual cycle: identification of the sexual phase by noninvasive measurement of luteinizing hormone". Journal of Sex Research 41 (1): 82–93 (in online article, see pp.14–15,18–22). PMID 15216427 . http://www.findarticles.com/p/articles/mi_m2372/is_1_41/ai_n6032944 .
- Gabriele Froböse, Rolf Froböse, Michael Gross (Translator): Lust and Love: Is it more than Chemistry? Publisher: Royal Society of Chemistry, ISBN 0-85404-867-7, (200
- Ellenberger F. Henri (1970). The discovery of the Unconscious: The History and Evolution of Dynamic Psychiatry . New York:
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