the.com/jittery
the body running on fear's fuel with nowhere left to drive.
caffeine linkCoffee jitters peak around 30 minutes after sipping.
adrenalineFight-or-flight floods muscles whether you flee or sit still.
blood sugarLow glucose can mimic anxiety with shakes and dread.
physics termEngineers call random signal noise the same word.
micro-tremorEveryone has a tiny constant hand tremor, always.