Related by context. Frequent words. (Click for all words.) 75 dopamine 69 neurotransmitter 68 neurotransmitters 68 chemical dopamine 68 Serotonin 67 Cortisol 66 serotonin 62 norepinephrine 62 glutamate 61 Oxytocin 61 striatum 60 Leptin 59 acetylcholine 59 vasopressin 57 signaling molecule 57 hypothalamus 56 cortisol 56 GABA 56 inhibitory 56 nucleus accumbens 55 endorphins 55 stress hormones 55 cAMP 54 secretion 54 BDNF 53 prolactin 53 limbic system 53 neurochemical 53 stress hormone cortisol 53 dopamine neurons 53 leptin 53 synaptic 53 endorphin 52 basal ganglia 52 signaling molecules 52 adenosine 52 thyroid hormones 52 ghrelin 52 glucocorticoid 51 thyroid hormone 51 neurons 51 nerve cells 51 AMPK 51 oxytocin 51 insulin secretion 51 TGF beta 51 amygdala 50 vagus nerve 50 phenylalanine 50 cytokines 50 Neurons 50 Melatonin 50 thalamus 50 signaling pathway 50 neuroendocrine 49 Apoptosis 49 intracellular 49 synapse 49 Hormone 49 STAT3 49 neurogenesis 49 hormone insulin 49 hormone 49 excitability 49 Akt 49 frontal cortex 49 neuron 49 insula 48 arousal 48 impulsivity 48 heme 48 histamine 48 metabolism 48 satiety 48 SIRT1 48 brain circuitry 48 beta catenin 48 Hormones 48 hippocampus 48 alpha synuclein 48 receptor 48 nitric oxide 48 synapses 48 Estrogen 48 CYP#A# [001] 48 protein kinase 48 cytokine 47 neurones 47 receptors 47 axon 47 Nicotine 47 prefrontal cortex 47 astrocytes 47 prostaglandins 47 lipid metabolism 47 NF kB 47 glutathione 47 hormones 47 adiponectin 47 neuronal 47 mTOR