Related by context. Frequent words. (Click for all words.) 70 stimulating 67 stimulate 66 stimulates 58 stimulation 54 inhibited 53 aroused 49 catalyzed 49 inhibiting 48 spurred 48 inhibit 47 stimuli 46 induces 46 nourished 46 spur 45 catalyze 45 invigorated 45 engendered 44 induce 44 fueled 43 spurring 43 inhibits 42 induced 42 positively impacted 42 suppressed 41 energized 41 modulate 41 suppresses 41 modulated 41 correlated 41 piqued 41 stifled 40 driven 40 invigorate 40 generated 40 facilitated 40 amplified 40 triggered 39 dampening 39 regenerated 39 influenced 39 dampened 39 endogenous 39 spurs 39 motivated 39 provoked 39 blunted 39 arouse 39 reinvigorated 38 modulating 38 fostered 38 arousing 38 stunted 38 negatively affected 38 underlie 38 cortex 38 dulled 38 stirred 38 buoyed 38 triggers 38 dampening effect 37 depressed 37 dopamine 37 curbed 37 re energized 37 dampens 37 kindled 37 injected 37 impacted 37 underpinned 37 augmented 37 adversely affected 37 perked 36 manifested 36 awakened 36 awaken 36 neurons 36 negatively impacted 36 serotonin 36 priming 36 physiologically 36 repressed 36 paralleled 36 neurotransmitters 36 neuron 36 accelerated 36 uplifted 36 cytokines 36 occasioned 36 manifested itself 36 arousal 36 attuned 36 endorphins 35 enhancers 35 harnessed 35 stress hormones 35 energizes 35 incentivized 35 constriction 35 sated 35 hypothalamus 35 anesthetized