anergy

Lack of reaction

Anergy is a state of abnormally low energy or responsiveness.

In immunology, it refers to the failure of the immune system to react to substances that would normally trigger a response—a T cell becomes anergic when it encounters an antigen but doesn't activate.

More broadly, anergy describes listlessness or lack of reaction: The patient displayed marked anergy following the illness.

immunological

unresponsiveness

Lack of reaction

toleranceWillingness to accept difference
self-toleranceAccepting your own imperfections
immunosuppressionReduced bodily defense activation

fatigue

lethargy

Abnormal drowsiness and apathy

exhaustionState of utter depletion
wearinessState of being drained
listlessnessAbsence of energy, enthusiasm

enervation · languor · sluggishness · debility · prostration · malaise · torpor · lassitude · weakness · inertia

clinical

immunocompromised

Reduced ability to fight infection

immunosuppressionReduced bodily defense activation
HIVAIDS-causing retrovirus
AIDSImmune deficiency syndrome

leukopenia · chemotherapy · corticosteroids · malnutrition · sarcoidosis · immunodeficiency · measles · uremia

Opposites

immunological reactivity

anergyhypersensitivity

Exaggerated response to stimuli

immunocompetence · allergy · immune response · autoimmunity · anaphylaxis

physiological energy/vitality

anergyenergy

Power to do work

vigor · vitality · dynamism · liveliness · robustness

Family

energy, energetic, synergy, erg, ergometer, energetics

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