Despite centuries of effort from philosophers, physicians and biologists, the answer to the seemingly simple question “what is aging?” remains elusive. Some even posit that aging represents a phenomenon too expansive to ever be succinctly defined. A new study tackles this question by profiling hundreds of phenotypes across age in mice and examining how the trajectories of these phenotypes are altered by geroprotective genetic and dietary interventions.
- Michael R. MacArthur
- Sarah J. Mitchell
