Related by context. Frequent words. (Click for all words.) 72 lifespans 61 life expectancy 51 longevity 49 life expectancies 49 outlive 47 span 46 lifetimes 45 lifecycles 44 incubation period 42 duration 41 gestation 41 telomere length 41 Life expectancy 40 telomeres 40 runtimes 40 usefulness 40 outlived 40 durations 39 cycles 38 spans 38 calorie restriction 36 lifecycle 36 caloric restriction 36 outliving 36 lasts 35 decays 35 durability 35 age 34 fecundity 34 dietary intake 33 consume 33 UV exposure 33 cognitive abilities 33 cycle 33 usage 33 girth 33 lengthen 33 genetic diversity 33 structural integrity 33 prolong 33 length 33 mortality 33 maturity 32 lifetime 32 disease progression 32 CD4 counts 32 toxicity 32 menstrual cycles 32 Methuselah 32 reproduction 32 bone density 32 survivability 31 recyclability 31 calorie intake 31 gestational 31 shorten 31 cognitive function 31 depreciate 31 symptom onset 31 senescence 31 efficacy 31 size 31 shorter 31 timescale 31 survival 31 prolongs 30 orgasms 30 warmer winters 30 fertility 30 thickness 30 Longevity 30 nanometers 30 existence 30 timeframe 30 consumes 30 Help Reason 30 offspring 30 aging 30 obsolete 30 regenerates 30 gestating 30 rechargeable battery 30 metabolic 29 oxidative damage 29 ovaries 29 immunosuppression 29 ejaculation 29 menopause 29 aerobic capacity 29 robustness 29 prevalence 29 compatibility 29 ubiquity 29 free survival PFS 29 dormancy 29 depreciates 29 milliseconds 29 ng ml 29 viability 29 expiry date 29 elapses