countermeasure

adversity

purpose

countermeasure

neurotransmitter

regulator

personality disorder

comforter

hardship

maintain durability

endorphins

dopamine antagonist

odd-eccentric cluster

hyperactivity

danger

maintain existence

adrenaline

serotonin agonist

dramatic-impulsive cluster

phobia

unfamiliarity-uncertainty

maintain tradition

adrenaline-glutamate

serotonin-GABA agonist

fearful-anxious cluster

rationality

unfamiliarity-uncertainty

maintain adaptability

adrenaline-glutamate

GABA agonist

doubtful-prying cluster