Related by context. Frequent words. (Click for all words.) 80 cortisol 64 stress hormones 61 ghrelin 61 leptin 61 depressive symptoms 61 caffeine intake 60 thyroid function 60 adiponectin 60 serotonin 59 estradiol 59 blood glucose levels 59 C reactive protein 59 estrogen 58 glucose metabolism 57 triglyceride levels 57 thyroid hormone 57 cognitive functioning 57 LDL cholesterol levels 57 hormone 56 hormonal 56 systolic blood pressure 56 cognitive function 56 melatonin 56 insulin resistance 56 arousal 56 insulin sensitivity 56 BDNF 56 homocysteine 55 testosterone 55 blood sugar 55 fat diet 54 oxytocin 54 metabolic syndrome 54 lung function 54 progesterone 54 androgens 54 dopamine 53 norepinephrine 53 androgen 53 triglycerides 53 HDL C 53 plasma concentrations 52 liver enzymes 52 uric acid 52 preterm delivery 52 HDL cholesterol 52 hot flushes 52 diastolic blood pressure 52 valproate 52 sleep disturbances 52 metabolic 52 sexual arousal 52 ADHD symptoms 52 bone density 52 IgE 52 neurogenesis 52 liver enzyme 52 dietary fat 51 circadian 51 SIRT1 51 preeclampsia 51 hormones 51 folate 51 adenosine 51 physiological 51 neuroticism 51 caffeine 51 Brain scans 51 metabolism 51 calcium intake 51 amygdala 51 ovulation 51 physiologically 50 daytime sleepiness 50 circadian rhythms 50 lactate 50 vitamin B6 50 LDL cholesterol 50 viral loads 50 triglyceride 50 menstrual cycle 50 abdominal fat 50 glutathione 50 insulin resistant 50 methylation 49 acetylcholine 49 systolic 49 gene variant 49 calorie intake 49 fat diets 49 cognition 49 vitamin D 49 cardiovascular mortality 49 ng ml 49 abdominal obesity 49 fluoxetine 49 amyloid beta 49 psychotic symptoms 49 GABA 49 impulsivity 48 cognitive deficits