Telomere dynamics rather than age predict life expectancy in the wild Physical activity level and health-related quality of life in the general adult population: a systematic review. The association between physical activity level and health-related quality of life in the general adult population: a systematic rev... New limits on the drift of fundamental constants from laboratory measurements New Limits to the Drift of Fundamental Constants from Laboratory Measurements Search for variations of fundamental constants using atomic fountain clocks. Testing the Stability of Fundamental Constants with the H g + 199 Single-Ion Optical Clock Senescence rates are determined by ranking on the fast-slow life-history continuum. Cold atom Clocks and Applications Fecundity and survival in relation to resistance to oxidative stress in a free-living bird.