In psychology, a state of bodily or mental tension resulting from factors that tend to alter an existent equilibrium. Stress is an unavoidable effect of living and is an especially complex phenomenon in modern technological society. It has been linked to coronary heart disease, psychosomatic disorders, and various other mental and physical problems. Treatment usually consists of a combination of counseling or psychotherapy and medication.

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Psychological reaction occurring after a highly stressful event and typically characterized by flashbacks, recurrent nightmares, and avoidance of reminders of the event; depression and anxiety are often present. Traumatic events that can lead to PTSD include automobile accidents, rape or assault, military combat, torture, and such natural disasters as floods, fires, or earthquakes. Long-term effects can include marital and family problems, difficulties at work, and abuse of alcohol and other drugs. Antidepressant medication and psychotherapy, including group therapy, are used in treating the disorder.

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Property of a liquid surface that causes it to act like a stretched elastic membrane (see elasticity). Its strength depends on the forces of attraction among the particles of the liquid itself and with the particles of the gas, solid, or liquid with which it comes in contact. Surface tension allows certain insects to stand on the surface of water and can support a razor blade placed horizontally on the liquid's surface, even though the blade may be denser than the liquid and unable to float. Surface tension results in spherical drops of liquid, as the liquid tends to minimize its surface area.

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Tension may refer to:

In science:

In the arts:

  • Tension (band), a Taiwanese R&B/Pop/Acapella vocal group.
  • Tension (music), the perceived need for relaxation or release created by a listener's expectations
  • Tension (film), a 1950 film noir
  • Tension (game), a 2008 video game
  • Tension (album), an album by the Christian Rock band Dizmas
  • Tension, a song by electronic duo Orbital on their album The Altogether
  • Suspense or tension, in drama, the feeling of uncertainty and interest about the outcome of certain actions an audience perceives

See also:

  • Tense (disambiguation)
  • Tenseness, in phonetics, a phonological quality frequently associated with vowels and occasionally with consonants

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