Related by context. Frequent words. (Click for all words.) 35 triggers 30 activation 26 trigger 25 involuntary 25 automatically 21 mechanism 21 thresholds 21 programmed 20 activating 19 triggering 19 activate 18 abnormal 18 detects 18 occurs 17 mechanisms 17 eg 16 parameter 16 occur 13 signaling 12 arises 12 triggered 12 signals 11 stimulated 11 correlated 10 eliminates 10 stimulates 10 mimics 10 alters 10 induce 9 fades 9 subsequent 9 prompt 9 avoidance 9 inhibit 9 induced 9 prompts 9 sudden 8 prevents 8 lowers 8 requires 8 motivates 8 accelerates 8 symptom 8 halts 8 generates 8 causes 8 precursor 7 raises 7 reduces 7 happens 6 disrupts 6 ensue 6 boosts 6 weakens 5 precede 5 affects 5 inducing 5 spark 5 disappears 4 exacerbate 4 slows 4 facilitates 4 eases 4 escalates 4 sustains 3 destroys 3 catalyst 3 leads 3 accompanies 3 sparks 3 intensifies 3 consequent 3 cause 3 provoke 2 involves 2 responds 2 lingers 2 constitutes 2 cancels 2 follows 2 clears 2 pushes 2 creates 2 stirs 1 renews 1 implies 0 resulting 0 precipitated 0 worsens 0 evokes 0 spurs 0 sparking -1 makes -1 caused -2 causing -2 prompted -3 spurred -3 threatens -3 provoked -4 complicates -4 sparked