hyperreactive
Reacts too strongly
Hyperreactive describes an exaggerated or excessive response to stimuli.
In medicine, a hyperreactive immune system overreacts to allergens or triggers inflammation unnecessarily: hyperreactive airways, hyperreactive skin.
The term extends to emotional or behavioral responses that seem disproportionate to the situation: The committee was hyperreactive to any hint of criticism.
Liable to sudden change
- temperamentalEasily upset, unpredictable
- explosiveProne to sudden detonation
- mercurialProne to sudden change
- thin-skinnedEasily hurt by remarks
touchy · irritable · triggered · defensive · hypersensitive · hair-trigger · disproportionate · outburst
Excessively active or busy
- overstimulatedExcessively aroused sensorially
- hyperactiveExcessively energetic, easily distracted
- jitteryAnxiously restless
- restlessUnable to be still
twitchy · adrenaline · nervous system · fight-or-flight · cortisol · hyperthyroid · excitable · startle response
Immune reaction triggers
- antihistamineDrug blocking allergic response
- anaphylaxisSevere systemic allergic reaction
- epinephrineAdrenal stress hormone
- hivesRaised itchy skin reaction
asthma · rhinitis · pollen · dust · mold · pet dander · eczema · dermatitis
Body attacks itself
- inflammationProtective tissue response
- cytokinesImmune signaling proteins
- antibodiesProteins targeting pathogens
- lymphocytesAdaptive immunity cells
hypersensitivity · inflammatory · immunoglobulin · T-cells · lupus · rheumatoid · Crohn's · celiac
volatile
Liable to sudden change
- temperamentalEasily upset, unpredictable
- explosiveProne to sudden detonation
- mercurialProne to sudden change
thin-skinned · touchy · irritable · triggered · defensive · hypersensitive · hair-trigger · disproportionate · outburst · meltdown
overactive
Excessively active or busy
- overstimulatedExcessively aroused sensorially
- hyperactiveExcessively energetic, easily distracted
- jitteryAnxiously restless
restless · twitchy · adrenaline · nervous system · fight-or-flight · cortisol · hyperthyroid · excitable · startle response · hypervigilant
allergens
Immune reaction triggers
- antihistamineDrug blocking allergic response
- anaphylaxisSevere systemic allergic reaction
- epinephrineAdrenal stress hormone
hives · asthma · rhinitis · pollen · dust · mold · pet dander · eczema · dermatitis · sneezing
autoimmune
Body attacks itself
- inflammationProtective tissue response
- cytokinesImmune signaling proteins
- antibodiesProteins targeting pathogens
lymphocytes · hypersensitivity · inflammatory · immunoglobulin · T-cells · lupus · rheumatoid · Crohn's · celiac · psoriasis
hyperreactiveunreactive
Not prone to reactions
nonreactive · unresponsive · inert · sluggish · torpid
hyperreactivecalm
Free from agitation
unflappable · placid · composed · even-tempered · imperturbable