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  2. Hyperalgesia - Wikipedia

    en.wikipedia.org/wiki/Hyperalgesia

    Hyperalgesia (/ ˌ h aɪ p ər æ l ˈ dʒ iː z i ə / or /-s i ə /; hyper from Greek ὑπέρ (huper) 'over' + -algesia from Greek ἄλγος (algos) 'pain') is an abnormally increased sensitivity to pain, which may be caused by damage to nociceptors or peripheral nerves and can cause hypersensitivity to stimulus.

  3. Opioid-induced hyperalgesia - Wikipedia

    en.wikipedia.org/wiki/Opioid-induced_hyperalgesia

    Opioid-induced hyperalgesia (OIH) or opioid-induced abnormal pain sensitivity, also called paradoxical hyperalgesia, is an uncommon condition of generalized pain caused by the long-term use of high dosages of opioids [1] such as morphine, [2] oxycodone, [3] and methadone. [4] [5] OIH is not necessarily confined to the original affected site. [6]

  4. Paroxysmal sympathetic hyperactivity - Wikipedia

    en.wikipedia.org/wiki/Paroxysmal_sympathetic...

    It is helpful in lowering blood pressure and heart rate, but it does not show much of an effect on other symptoms. It may also increase sympathetic inhibition in the brainstem. [medical citation needed] Bromocriptine is a dopamine agonist that helps lower blood pressure. Its effects are modest, but they are not well understood.

  5. Hypersensitivity - Wikipedia

    en.wikipedia.org/wiki/Hypersensitivity

    Hypersensitivity (also called hypersensitivity reaction or intolerance) is an abnormal physiological condition in which there is an undesirable and adverse immune response to an antigen. [ 1 ] [ 2 ] It is an abnormality in the immune system that causes immune diseases including allergies and autoimmunity .

  6. Fibromyalgia - Wikipedia

    en.wikipedia.org/wiki/Fibromyalgia

    Patients are also highly sensitive to pain, and the slightest touch can cause pain. Pain also tends to linger for longer when a patient experiences pain. [33] The pain associated with fibromyalgia is often a constant dull ache that has lasted for at least three months, occurring on both sides of the body and above and below the waist. [34]

  7. Sensory processing sensitivity - Wikipedia

    en.wikipedia.org/wiki/Sensory_processing_sensitivity

    A 2015 longitudinal study based on army medical records of Swedish men showed a correlation between low resting heart rate and violence and criminality, with the authors theorising that lower sensitivity to stimulation resulted in increased likelihood of risk-taking and sensation-seeking behaviour – effectively a low sensitivity counterpart ...

  8. Reflex syncope - Wikipedia

    en.wikipedia.org/wiki/Reflex_syncope

    The underlying mechanism involves the nervous system slowing the heart rate and dilating blood vessels, resulting in low blood pressure and thus not enough blood flow to the brain. [2] Diagnosis is based on the symptoms after ruling out other possible causes. [3] Recovery from a reflex syncope episode happens without specific treatment. [2]

  9. Hypersensitivity pneumonitis - Wikipedia

    en.wikipedia.org/wiki/Hypersensitivity_pneumonitis

    Hypersensitivity pneumonitis (HP) or extrinsic allergic alveolitis (EAA) is a syndrome caused by the repetitive inhalation of antigens from the environment in susceptible or sensitized people. [ 1 ] [ 2 ] Common antigens include molds, bacteria, bird droppings, bird feathers, agricultural dusts, bioaerosols and chemicals from paints or plastics ...