Related by context. Frequent words. (Click for all words.) 71 caffeine 58 Melatonin 53 caffeinated beverages 52 Nicotine 51 Vitamin C 49 taurine 49 Hormone 49 stimulant 48 B vitamins 48 caffeinated 48 Vitamin E 48 Testosterone 48 nicotine 48 depressant 47 melatonin 47 Chromium 47 Estrogen 47 Antidepressants 47 stress hormone cortisol 47 hormone 47 Drinking 47 cortisol 46 Antioxidant 46 appetite suppressant 46 Serotonin 46 fructose 46 anti oxidant 46 serotonin 46 decaffeinated coffee 46 Sodium 46 Resveratrol 46 metabolism 46 artificial sweeteners 46 omega 3s 46 antioxidants 45 flavanols 45 Omega 3s 45 Aspirin 45 Consuming 45 Vitamin D 45 caffeine intake 45 Trans fat 45 vitamin B6 45 hormones 44 dextromethorphan 44 endorphins 44 Calcium 44 endorphin 44 estrogen 44 antioxidant 44 Painkillers 44 Leptin 44 Cocaine 44 Carbs 44 Oatmeal 44 Hormones 43 sugars 43 Glucose 43 quercetin 43 Antioxidants 43 vitamin C 43 stress hormones 43 anti oxidants 43 CoQ# 43 Carbohydrates 43 testosterone 43 creatine 43 flavonoids 43 Calorie 42 thyroid hormone 42 resveratrol 42 adenosine 42 Sleep deprivation 42 herbal supplement 42 Folate 42 Acetaminophen 42 Firefox 42 guarana 42 carbohydrate 42 glutathione 42 Breast milk 42 antioxidant rich 42 DHEA 42 drowsiness 42 Dopamine 42 ascorbic acid 42 grapefruit juice 42 fatty acids 42 fatty acid 41 polyphenols 41 acetaldehyde 41 Cholesterol 41 isoflavones 41 EGCG 41 vitamin E 41 Ephedra 41 PageRank 41 Eating 41 Folic acid 41 soluble fiber 41 dietary fiber