Related by context. Frequent words. (Click for all words.) 58 senescence 48 decrepitude 47 necrotic 46 senility 46 senile 46 CD8 T 45 debility 45 hyperplasia 45 quiescence 45 indolent 45 progenitors 44 neurogenesis 44 vampiric 44 decay 44 hormonally 44 overactive 43 Oxidative stress 43 ovarian function 43 testis 43 quiescent 43 NKT cells 43 maladaptive 42 genetically programmed 42 mesenchymal 42 lymphoid 42 enfeebled 42 mitotic 42 adulthood 42 catatonia 42 pathological 42 fecundity 42 stasis 42 genetically inherited 42 secretory 42 priapic 42 bipolarity 42 overactivity 42 vestigial 42 mental faculties 42 mitosis 42 homeostatic 42 contractile 42 phenotype 42 adolescence 41 diseased 41 desiccated 41 mutant mice 41 ossification 41 cerebrum 41 neurones 41 atrophy 41 eukaryotic cells 41 unreason 41 malignant 41 oligodendrocytes 41 chickenpox virus 41 imperium 41 behavioral abnormalities 41 sclerosis 41 senile dementia 40 degeneration 40 decaying 40 infantile 40 enervated 40 mimetic 40 cobwebbed 40 Malignant 40 pubescent 40 heterochromatin 40 asocial 40 hematopoietic stem cells 40 vagrant 40 fleshly 40 crepuscular 40 evolutionary adaptation 40 germ cells 40 ineradicable 40 hypertrophy 40 virile 40 mutant 40 neurodegenerative disorder 40 paradoxically 39 acquisitiveness 39 metastasizing 39 aberrant 39 neural tissue 39 metabolically active 39 diurnal 39 incipient 39 homo sapiens 39 progenitor 39 cave dwelling 39 desiccation 39 tubercular 39 dotage 39 cankers 39 mutated 39 asexual 39 codger 39 whorl 39 amoebas