Related by context. Frequent words. (Click for all words.) 77 hypotheses 76 theory 66 theories 62 supposition 60 postulate 55 empirical 55 hypothesized 54 hypothesize 54 notion 53 thesis 53 empirical evidence 53 Hypothesis 52 empirically 51 theorem 49 assertion 49 causation 49 postulated 48 theoretical 48 mechanistic 48 scientifically 48 hunch 48 neurobiological 48 assumption 47 theorizing 47 myth 47 Einstein theory 47 evolutionary theory 46 hypothesizes 46 plausible explanation 46 postulates 46 causative 46 laboratory experiments 46 findings 46 conventional wisdom 45 experimentally 45 conjecture 45 reasoning 45 epidemiological studies 44 molecular mechanism 44 observational studies 44 assertions 44 conclusively 44 causal 43 posit 43 contentions 43 cosmology 43 cosmological 43 dogma 43 phenotypes 43 suggestion 43 conspiracy theory 43 rationale 43 theorists 43 phenotype 43 evidence 43 notions 43 idea 43 intuitions 42 evolutionary 42 quantum theory 42 theorized 42 mitochondrial 42 caloric restriction 42 general relativity 42 plausible 42 Darwin theory 42 genetic predisposition 42 fallacy 42 premise 42 genetic variant 42 meta analysis 42 extrapolation 42 definitively 42 circumstantial evidence 42 conjectures 42 experiments 42 Scientifically 42 etiology 42 meta analyzes 41 counterargument 41 pathogenesis 41 mathematical models 41 theorize 41 causality 41 priori 41 logic 41 causal relationship 41 Keynesian economics 41 methodology 41 speciation 41 Darwinism 41 conjectured 41 pathophysiology 41 scientific 41 causal link between 41 method 40 epidemiologic 40 argument 40 Theory 40 probabilistic 40 metabolic pathways