the.com/irritability
the body's smoke alarm going off because you forgot to eat lunch
hunger linkLow blood sugar triggers cortisol, sharpening every annoyance
sleep debtOne bad night spikes emotional reactivity by 60 percent
cell biologyEven single-celled organisms react irritably to stimuli
thyroid tellSudden short fuse can signal overactive thyroid
contagiousIrritable moods spread through groups like yawns